Tap hole callout - American Tap Manufacturers use a series of tap pitch diameter limits. These limits feature a .0005 tolerance in tap sizes #0 Thru 1" and a .001" or greater tolerance in tap sizes above 1" thru 1 1/2" diameter. Example: 1/4-20. Relationship between Tap Pitch diameter limits and basic nominal pitch diameter.

 
However, SOLIDWORKS interprets this as the user’s design intent to make the hole through every feature, so the drawing’s hole callout is “THRU ALL” even though there is only one feature being drilled through. To capture design intent of “THRU”, the end condition of the hole must be “Up to Next”. This tells SOLIDWORKS the design .... Producers hillsboro

To add hole callouts in a drawing: Click Hole Callout on the Annotation toolbar, or click Insert, Annotations, Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears.SOLIDWORKS 2020 Hole Callouts in Section View. 800-688-3234. Article by Maurice Cherian on Nov 11, 2019. Tweet. SOLIDWORKS 2020 Promises a host of new features and tools to make our lives easier. This new feature has been something designers and engineers have been asking for, for a long time.Feb 16, 2021 · A countersink and a chamfer are very similar. A countersink is basically no different than a chamfer on a hole. The main difference is that a chamfer is normally thought of as being at 45 degrees (though the angle can vary). A countersink is usually one of many different standard angle sizes. The most common countersink angles are 82°, 90° or ... To add a hole callout: Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and the dimension ... To add a hole callout: Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and the dimension ... Tip/Trick. Here’s the tip to use simplified threaded hole callouts. Before SolidWorks is started, launch Windows Explorer and goto X:\Program files\SOLIDWORKS Corp\SOLIDWORKS\lang\english (or similar, depending on SOLIDWORKS installation location). Rename calloutformat.txt to calloutformat_1.txt. Rename calloutformat_2.txt to calloutformat.txt.Feb 21, 2012 · If you specify a .250 diameter hole at .500 deep then the hole should be .250 for the entire length of .500. If the tip is included in this then this will not be the case. Adding the DO NOT BREAK THRU note is effective as well. The same goes for tapped holes. The depth should be for the minimum amount of threads. Thread Percentage and Tap Drill Charts. Most tap drill charts call out only one tap drill size, and that will produce an approximate 75 percent thread. For most applications, you can get longer tap tool life and lower likelihood of breaking a tap off in the hole by using a lower percent of thread. Companies like Guhring actually recommend …The process generally includes using a spot drill or center drill to create a divot, drilling a pilot hole (see the chart below for the proper size "tap drill"), then using the tap to produce the threads. The tables below also list the standard sizes for …Calloutformat.txt is the default file which SolidWorks uses to determine how to form threaded hole callouts created with the Hole Wizard. This file establishes the rules to show both the nominal drill diameter and the thread detail in a leadered note. This is the most common method for threaded hole callouts.For example, a through hole tapped M6 will have a callout reading. M6-6H THRO. A blind hole with a 6mm deep thread will have a callout reading. M6-6H x 6 MIN FULL THREAD. The problem comes when I use the 'Up To Next' end condition in my hole wizard. Solidworks sees this type of hole as a blind hole. So, for example, I drill and tap a hole ...May 25, 2017 ... ... hole table that shows the location and size of all holes on multiple faces ... Tap to unmute. Your browser can't play this ... holes on multiple ...Anything in the text area will fill into the 2D drawing when the hole callout is used. Another, more specific solution to your issue would be to add a check box in the hole wizard that indicates LH thread. When the box is checked, the LH Thread text is added to the hole callout. arcticcatmatt (Mechanical)If you specify a .250 diameter hole at .500 deep then the hole should be .250 for the entire length of .500. If the tip is included in this then this will not be the case. Adding the DO NOT BREAK THRU note is effective as well. The same goes for tapped holes. The depth should be for the minimum amount of threads.If you have an issue with the depth of the tap drill, show a section or hidden view. The issue for me is that I may or may not be determined to have a blind hole. If the tap drill depth matters to you, add it to your section view. Don't tell …In NX 11, there is a third option. You can create all linear dimensions automatically with a single operation. In the Linear Dimensions dialog underneath measurement there is a check box to create secondary dimensions for depth. Place the callout size for the hole, and notice NX automatically creates thread depth and hole depth dimensions.The difference between threading and tapping is the surface on which the processes happen. The threading process creates threads on the outside of a fastener, like a bolt, and it’s done with a die tool. The tapping process creates threads on the inside of a drilled hole, and it’s done with a tapping tool.The dashed lines shown on the cross-section of the part indicate where the depth measurement is taken. Figure 1: Depth of Feature Indicated by the Depth Symbol. If the depth dimension isn’t clear because of a curved or complex surface, the part should be dimensioned pictorially, without the depth symbol. The part in Figure 2 is a good example ...Adding Hole Callouts in a Drawing. Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and ...Steps Copy link. Creating a hole or thread callout: Click . Select a circle that is part of a hole feature, or a thread that is part of an external thread feature. Drag to place the callout. If the selection was part of a hole feature, the precision, tolerance, fit class tolerance, and shaft class tolerance values from that feature are ...For instance, on a M12 x 1.75 x 85 callout, M12 is the diameter. It means the external threads are 12 mm (0.47 in) wide. 4. Read the next number to figure out the screw’s pitch. The pitch represents the distance in millimeters between the grooves on the screw’s shaft. It will follow an “x” after the diameter number. With a drawing open, click Options (Standard toolbar), select Document Properties, and then select Dimensions > Hole Callout. Overall drafting standard Inherited from the selected Drafting Standard page settings. I make a part and use hole wizard to make a cbore. Then when I make a drawing of the part and do "Insert Model Items", the hole callout works and all the dimensions are there. However, when I do this for a tapped hole, I only get the dimension of the drill size and no spec for the tap size, etc. Anyone help me on this?Calloutformat.txt is the default file which SolidWorks uses to determine how to form threaded hole callouts created with the Hole Wizard. This file establishes the rules to show both the nominal drill diameter and the thread detail in a leadered note. This is the most common method for threaded hole callouts.How I can set the hole callout (tap hole only) to show. I need to remove the 1st line. I need the depth to be 2d.p. only. Original version from attachment, I want the update to be the following. e.g. M3x0.5-6H, depth symbol 0.75. I want to make this automatically for all tap holes when I create them. I have thousands of holes to do.If you are going to tap a 4.8mm hole with M6, then you are going break the tap for sure. Make a print out for metric threads and tape it to your shops wall. Simple. But one thing you are correct juergenwt, on drawings metric threads don't have a thread pitch described, unless, its a fine pitch thread. TDegenhart , here is a simple chart for you. To add a hole callout: Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and the dimension ... The tapping tool utilizes each machine stroke to produce an accurate thread in programmed locations. With each stroke, the tool is engaged, and the tap rotates to form the material, creating the pitch of the thread needed. The tapping tool has a built-in fluid injection system that is synchronized with the machine stroke to reduce the wear on ...If the latter: Quote (ASME Y14.5-2009 para. 1.4) (e) The drawing should define a part without specifying manufacturing methods. pylfrm. RE: Bottom Tap callout on a drawing. 3DDave (Aerospace) 25 Jan 19 08:52. The callout is by specifying the desired depth of the thread and not allowing the pilot hole to go much farther or, somewhat oddly, to ...The first part represents the quantity of the hole. Which is 3 in the case of inch thread and 2 in the case of metric thread from the above tap hole callouts. The second part is the tap hole screw thread designation. (Discussed seperately for each unit system below) The third part is the Bolt Circle Diameter where the hole need to be placed.Calloutformat.txt is the default file which SolidWorks uses to determine how to form threaded hole callouts created with the Hole Wizard. This file establishes the rules to show both the nominal drill diameter and the thread detail in a leadered note. This is the most common method for threaded hole callouts.I am tired of trying to figure it out by myself and any help is greatly appreciated. Our Standard Callout is: (Note #XX has to be manually updated each time a new hole gets added or existing holes get changed.) 2X DRILL #XX (Ø.201) THRU. TAP 1/4-20 UNC- 2B THRU. DRILL #XX (<MOD-DIAM><hw-tapdrldia>) <hw-thru>.To add a hole callout: Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and the dimension ...Apply a hole callout to a hole or thread, automatically inserting the metadata of the hole or thread. Steps Copy link. Creating a hole or thread callout: Click . Select a circle that is part of a hole feature, or a thread that is part of an external thread feature. Drag to place the callout.Example: 1/2 - 20 Thread. 1/2 = Major diameter. 20 = Threads / Inch (TPI) Percentage of Thread and Tap Drill Selection: Many variables affect the performance of threaded holes and the taps used to generate them. One very important factor is the drill size used to produce the hole that will be tapped. Most tap drill charts call out only one tap ...In a report released today, William Kirk from MKM Partners maintained a Buy rating on Molson Coors (TAP - Research Report), with a price target of... In a report released today, Wi...Information in a feature callout can also be displayed in a hole diameter dimension form. Following are the steps to accomplish this. Home -> Dimension -> Smart Dimension. On the commandbar, click Dimension Type and choose Feature Callout from the list. Click one of the concerned holes and then click where you want to place the dimension. To add a hole callout: Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and the dimension ... This post has moved to the NX Design Knowledge Base . The complete NX Quick Tips video series can be found here. More information about Callouts and drafting, see the NX9 Documentatio n. Jerry. Topics. News. Tips & Tricks. Stay up to date with the Siemens Software news you need the most. Get Started.Dec 27, 2020. #4. OrjanB said: By using the holetool I can in one operation make a part with several equal holes. When coming to specifying the holes in a drawing I can use Hole Callout. Then one hole is marked and the number of holes with equal specs are shown. This is fine when all the holes are equal, but when I have several holes with ...Customizing the hole callout file starts at the default location for templates which is usually: C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\lang\english. You will find a file there called “calloutformat.txt”. Let’s make a copy and paste it to a different folder to work with. Let’s rename that pasted copy to “calloutformat_edited_1 ...User created Threaded Hole in modeling and Tap Drill Diameter is not displayed after created Hole Callout Dimension in drafting. Solution To display Tap Drill Diameter we need to do below steps. Steps: ----- 1.Menu>>Insert>>Dimension. 2.Select Linear/Radial Dimension. 3.Set Method [Hole Callout] 4.Select settings>>Hole Callout.The Hole Callout tool adds driven diameter dimensions to holes created by the Hole Wizard or circular cut features. Best results are obtained by creating holes using the Hole Wizard. Hole callouts are available in drawings. If you change a hole dimension in the model, the callout updates automatically. Hole callouts use Hole Wizard information ...hole callouts in drawings. SW By Sarah Wells 10/08/13. When I use the Hole Wizard to create a tapped hole and then bring the model into the fabrication drawing. In the drawing you can choose to use the hole callout annotation command and it works perfectly with the countersunk and counter bored holes but it doesn't read the tapped hole.When it comes to drilling holes and creating threads, having the right tap and drill bit size is crucial. Whether you’re a professional tradesperson or a DIY enthusiast, understand...SOLIDWORKS 2020 Hole Callouts in Section View. 800-688-3234. Article by Maurice Cherian on Nov 11, 2019. Tweet. SOLIDWORKS 2020 Promises a host of new features and tools to make our lives easier. This new feature has been something designers and engineers have been asking for, for a long time. You add hole callouts to annotate the Mechanical Toolbox holes in your drawing with dimensions and descriptions. You can create a hole table by selecting holes with callouts. The table lists the locations and descriptions of the selected holes. The format and content of hole callouts depends on: Hole category. Counterbore. Countersink. Jul 4, 2019 ... Tap to unmute. Your browser can't play this ... Creo Parametric - Custom Hole Charts (Part 3 of 3) - Callout Format ... Hole table for thread ...tap for #4-40 helicoil insert = 1.0 * dia. INSERT TANGLESS HELICOIL AS PER NASM33537 Was the free-running callout was essential, did the note need to specify a particular install depth (NASM spec says .25p-.50p below the surface for non-countersunk holes.), and was a BOM for the helicoil necessary or the installation callout sufficient?Author Profile. eMail author. Edit. Well, generally we don't specify the pre-drill hole for tapping. We call out the threaded hole feature end-item requirement e.g. Arrow pointing to threaded hole feature with 3/8 - 16 UNC -2B. or. 5X .250-28 UNF - 2A, .500 MIN FULL THREAD. 5X = means there are five holes that must meet this requiremnt.The diameter of a tapped hole refers to the size of the hole itself, while the thread pitch indicates the distance between each thread. Common sizes for tapped holes include M3, M4, M5, M6, and so on, with the “M” standing for metric. When it comes to imperial sizes, tapped holes are often denoted by a fractional number.1 Insert Installation 1. Drill with a standard drill, as listed for each part number. 2. Countersink with a standard countersink (82° to 100°). 3. Tap with a standard Unified Thread Series tap. 4. Screw in insert with fingers or installation tool. Insert is …No worries, SW has a pretty vertical learning curve. So if you use 'HOLE-DEPTH' for the drill depth and the tap depth in a blind hole, your machinist isn't going to be pleased.Using the 'up to next' option for a tapped hole does imply that the thread is continuous through its entire depth - the difference in the callout will be that the hole is …Information in a feature callout can also be displayed in a hole diameter dimension form. Following are the steps to accomplish this. Home -> Dimension -> Smart Dimension. On the commandbar, click Dimension Type and choose Feature Callout from the list. Click one of the concerned holes and then click where you want to place the dimension.Your job on the drawing is to define what you want. The machinist's job is to make the part to your design. By only calling out the NPT thread on the hole, you have done your part. How deep the machinist taps the hole to get the proper fit, is his job. "Wildfires are dangerous, hard to control, and economically catastrophic."To define a derived hole callout standard: Locate and open calloutformat.txt. Copy and paste content describing the ANSI standard. Using only upper case letters, substitute the new derived standard name for ANSI in this copied section of text in the file. Modifying the Hole Callout Format.Click Hole Callout (Mechanical Toolbox toolbar) or Mechanical Toolbox > Holes > Callout. To specify callout settings such as text callout type and text style, in the Command window, type Settings and press Enter. The Toolbox - Settings dialog box opens to the Hole Callout screen of the Annotations section. Under General: Select the Callout type:Adding Hole Callouts in a Drawing. Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and ...the TEXT "TAP DRILL:" callout and make it a NX default setting for all users. Solution User can edit or remove the text "TAP DRILL" callout and set default settings from preference and Customize Drafting Standard. Where it in Drafting Preference ----- Preferences ->Drafting -> Common: Prefix/Suffix : Hole Callout : Parameter.Add threads from both sides of the hole as deep as the tap or cutting tool allows. Note that the threads may not reach each other and that a portion of the hole will be unthreaded. 6. Deep Threaded Hole. A deep threaded hole is one in which the depth of the threading is more than 1.5x the diameter of the thread. Deep threaded holes present ...In this video, necessary dimensions for holes (simple, threaded) in drafting using SolidWorks are discussed along with the Hole Callout command. Default callout: Removes all customizations you made to all hole callouts in the PropertyManager. Customize callout: To customize a callout string, double-click it in the Callout String list and select variables. You can also select Callout Variables to display a list of all variables. Modified strings are marked with an asterisk in the list. How I can set the hole callout (tap hole only) to show. I need to remove the 1st line. I need the depth to be 2d.p. only. Original version from attachment, I want the update to be the following. e.g. M3x0.5-6H, depth symbol 0.75. I want to make this automatically for all tap holes when I create them. I have thousands of holes to do.Hole Callout / Hole depth Hello all, Our vendors are complaining allot, because we have numerous through holes in our parts that are called out as depths. For instance. a hole through a 1/8" wall may be called out as .125 deep. I cannot change it to a "through all" hole, because there is a wall on the other side of the part that I do not want ...The Hole Callout tool adds driven diameter dimensions to holes created by the Hole Wizard or circular cut features. Best results are obtained by creating holes using the Hole Wizard. Hole callouts are available in drawings. If you change a hole dimension in the model, the callout updates automatically. Hole callouts use Hole Wizard information ...I am tired of trying to figure it out by myself and any help is greatly appreciated. Our Standard Callout is: (Note #XX has to be manually updated each time a new hole gets added or existing holes get changed.) 2X DRILL #XX (Ø.201) THRU. TAP 1/4-20 UNC- 2B THRU. DRILL #XX (<MOD-DIAM><hw-tapdrldia>) <hw-thru>. Default callout: Removes all customizations you made to all hole callouts in the PropertyManager. Customize callout: To customize a callout string, double-click it in the Callout String list and select variables. You can also select Callout Variables to display a list of all variables. Modified strings are marked with an asterisk in the list. To add a hole callout: Click Hole Callout (Annotation toolbar), or click Insert > Annotations > Hole Callout. The pointer changes to . Click the edge of a hole, then click in the graphics area to place the hole callout. A Hole Callout is inserted and the Dimension PropertyManager appears. The callout contains a diameter symbol and the dimension ...Standard Callout Formats with Examples. A standard threaded hole callout typically includes the thread size, type, and, if necessary, the depth of the thread. For example: Metric Thread Callout: M8 x 1.25, where 'M8' indicates an 8mm diameter and '1.25' the pitch. Unified Thread Callout: #10-32 UNC, where '#10' is the size, '32' the number of ...In NX 11, there is a third option. You can create all linear dimensions automatically with a single operation. In the Linear Dimensions dialog underneath measurement there is a check box to create secondary dimensions for depth. Place the callout size for the hole, and notice NX automatically creates thread depth and hole depth dimensions.Whether the end condition is Blind or Thru in the hole's properties.; Settings you specify in the Toolbox - Hole Callouts dialog box.. You can select to: Display the callout using Symbols and text or just text (Traditional); Preface the callout with the number of holes that exactly match the hole you apply the callout to.Mar 26, 2011 · If you are going to tap a 4.8mm hole with M6, then you are going break the tap for sure. Make a print out for metric threads and tape it to your shops wall. Simple. But one thing you are correct juergenwt, on drawings metric threads don't have a thread pitch described, unless, its a fine pitch thread. TDegenhart , here is a simple chart for you. Tap size: NF/NC UNF/UNC: Threads per inch: Basic major dia (inches) Basic effective dia (inches) Basic minor dia of ext. threads (inches)ACME Threads: Dimensions, Charts & Formulas. Acme is a trapezoidal thread profile with a 29° V angle, defined in ASTM B1.5. It is the most popular thread used for traversing linear motion (For example, leadscrews and power screws) due to its ability to withstand large loads and ease of manufacturing. It is found in industrial equipment such as ... You add hole callouts to annotate the Mechanical Toolbox holes in your drawing with dimensions and descriptions. You can create a hole table by selecting holes with callouts. The table lists the locations and descriptions of the selected holes. The format and content of hole callouts depends on: Hole category. Counterbore. Countersink. If you’re working on a project that involves drilling and tapping holes, understanding drill and tap sizes is crucial. The right drill and tap size ensures proper thread engagement...the TEXT "TAP DRILL:" callout and make it a NX default setting for all users. Solution User can edit or remove the text "TAP DRILL" callout and set default settings from preference and Customize Drafting Standard. Where it in Drafting Preference ----- Preferences ->Drafting -> Common: Prefix/Suffix : Hole Callout : Parameter.used in local callouts for holes. Standard practice recommends specifying the holes as 2 X .250 with the leader line only pointing to one hole. The depth symbol is used in front of the depth value. If the depth is specified as THRU (for through), the hole passes entirely through the feature. Also illustrated

Please see the attached examples. Specify the through hole and port in order of shop process to create the feature. e.g. .375 dia. thru, SAE -8 port. How much you put into the port description depends on your shop's understanding of what you want.. Kwikset master code

tap hole callout

The callout that will be used on Kress engineering drawings will be as follows: The nominal tap drill holes diameter will be shown to the three places decimal (See table 2 for tap drill sizes). Tap drill tolerances will be shown after the holes diameter (See table 2 …ASME Y14.6-2001, page 8, shows the thread callout WITH the space. "Wildfires are dangerous, hard to control, and economically catastrophic." Just before section 6.2 a legend includes the hyphen such as between UNC-2A. This appears to be the preference in B1.1. Interesting - I've typically used "1/4-20UNC".For through holes, both the computed hole depth and tapped depth values display THRU on the Hole/thread callout in a drawing: Tips All material is cleared between the point on the sketch plane and the hole: If you change the sketch, the hole feature recomputes. ... Tapped - Creates a tapped hole. Tap type - Select either Straight tap or …I made part A, which contains a number of threaded holes. In the. drawing for part A, the hole callout function works as expected, showing the quantity, tap drill dia. and depth, and tap size and depth. I made part B, mirrored from part A, making sure to check the cosmetic. thread box for the mirror part feature. In the drawing for part B, the.1-Newbie. (To:sfinke) Dec 15, 2015 08:33 AM. If you create a hole feature using the hole tool and select a threaded hole, Creo will automatically generate a note based on the .hol file for the thread style you have selected. If you select the hole tool, but do not use the thread based portion of the tool, a note will not be generated.I make a part and use hole wizard to make a cbore. Then when I make a drawing of the part and do "Insert Model Items", the hole callout works and all the dimensions are there. However, when I do this for a tapped hole, I only get the dimension of the drill size and no spec for the tap size, etc. Anyone help me on this?First, let’s work on the four length dimensions at the bottom of the left view in Figure 1. For distances like these, we need to use the location dimension per geometric dimensioning and tolerancing standards to define feature locations rather than feature sizes. Defining the longest distance, 1.940 in, and the shortest one, 0.180 in, is easy.People in the U.S. usually take tap water for granted – it’s always available in a seemingly endless supply. But there is a lot more to tap water than you might imagine. Here are s...6H is the preferred tolerance class at Husky. Class 6H8G is only permissible on tool and alloy steels. Chamfer Ø = Tap drill Ø + (N x pitch) With Nnom=1.5, Nmin=1.3, Nmax=1.7 Given values apply to cut tap 6H holes. All dimensions in mm. ISO261 & ISO965 metric screw threads. ISO metric screw threads are designated M10 X 1.0-6H.The tap depth for other hole types should be: (Thread Depth + (1 + Thread Pitch 4)) + (Thread Pitch 5) What Is the Callout Symbol of a Blind Hole? Callout Symbol of a Blind Hole. The “M20 x 2.5” footnote in the above figure represents the thread pitch and fastener size. Meanwhile, the arrow pointing downwards represents the thread tap depth ...TAP: with a Heli-Coil® STI tap (and ream for ANPT) 3.GAGE: the hole to recommended ® 4. INSTALL: The insert with Heli-Coil tolerance hand or power inserting tools and remove the tang ASSEMBLY Extremes of truncation and pitch diameter tolerance can create crest and root (major and minor diameter) clearances which might allow a void and result ...Tap Drill Clearance Drill Aluminum, Brass, Plastics Steel, Stainless Steel, Iron Close Fit Standard Fit 75% Thread 50% Thread Screw Size Major Dia (mm) mm per Thread Drill Size Closest Imperial Drill Size Closest Imperial Drill SizeTap size: NF/NC UNF/UNC: Threads per inch: Basic major dia (inches) Basic effective dia (inches) Basic minor dia of ext. threads (inches) Basic minor dia of int. threads (inches).

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