Choose from our selection of 3 4 quot 10 nuts including over 425 products in a wide range of styles and sizes In stock and ready to ship Machine Screw Size Threads Per Inch Minor Dia Tap Drills Clearance Hole Drills Alum Brass Internal Thread Dimensions for Unified UNF Screw Threads Diameter Threads Per Inch TPI Thread Fit Class Major Diameter Pitch Diameter Minor Diameter Stress Area Min Max Min Max Min in 178 No 0 80 2B 0 0600 0 0542 0 0519 0 0514 0 0465 0 00180 72 2B 0 0730 0 0665 0 0640 0 0635 0 0580 0 00278 No 2 64 2B 0 0860 0 0786 0 0759 0 0753 0 0691 0 00394 No Thread Pitch Chart Thread series cover designations of diameter pitch combinations that are measured by the number of threads per inch TPI applied to a single diameter Coarse Thread Series UNC UNRC is the most common designation for general application bolts and nuts Choose from our selection of 3 4 quot 10 bolts in a wide range of styles and sizes In stock and ready to ship

27 rows nbsp 0183 32 Thread Pitch Chart Thread series cover designations of diameter pitch 7500 19 05 3 4 quot 10 16 20 7874 20 00 M20 2 5 1 5 2 0 8124 20 64 13 16 quot 20 13 16 quot 1 12 8250 20 96 1 2 quot 14 8400 21 34 1 2 quot 14 Thread Size Comparison Chart continued from facing page 19 jan 2018 C AT ALOG 1 4 R P 1 800 265 8772 F 1 888 252 6380 www com Inch and Metric Pouce et M 233 trique Thread Size Comparison Chart R9 Comparisons are for size only Do not ANSI ASME INTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI ASME B1 1 1989 R2001 R2001 Nomenclature are used Acceptability criteria are described in ANSI ASME B1 3M 1992 R2001 Note This screw chart is not comprehensive of all available standard threads as provided by the standard Thus 0 500 20 Stub Acme M1 for a Form 1 thread and 0 500 20 Stub Acme M2 for a Form 2 thread Former 60 Degree Stub Thread Former American Standard B1 3 1941 included a 60 degree stub thread for use where design or operating conditions could be better satisfied by the use of this thread or other modified threads than by Acme threads Joywayus 1 2 quot G Thread 215 3 4 quot NPT Thread Brass Pipe Fitting Adapter 4 4 out of 5 stars 159 1 offer from 7 99 Joywayus Brass Hex Bushing Reducer 1 2 quot NPT 215 3 4 quot GHT Male Thread Reducing Cast Pipe Fitting Adapter 4 3 out of 5 stars 35 1 offer from 9 99 Joywayus 3 4 quot GHT Thread x 1 2 quot Male NPT Thread Brass Pipe Fittings Adapter 4 3

Acme General Purpose 2G Thread Series Limiting Dimensions amp Tolerances The dimensions listed below can be used to determine the diameter along with the thread pitch 29 rows nbsp 0183 32 3 4 10 UNC 1A 0 0018 0 7482 0 7288 0 6832 0 6744 0 6291 Int 1B 0 6630 0 6420 2016 04 26 nbsp 0183 32 American National Standard Pipe Thread standards often called national pipe thread standards for short are U S national technical standards for screw threads used on threaded pipes and pipe fittings They include both tapered and straight thread series for various purposes including rigidity pressure tight sealing or both The types are named with a 2015 02 13 nbsp 0183 32 The thread series is generally relative to the outside diameter of the screw 20 threads per inch on a 1 4 quot diameter screw is considered coarse 1 4 20 UNC On a 3 4 quot diameter screw 20 threads per inch is considered extra fine 3 4 20 UNEF It also plays a role in determining the length of engagement UN standard series thread 95 rows nbsp 0183 32 ANSI ASME EXTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI ASME B1 1 1989 R2001 R2001 Nomenclature are used Acceptability criteria are described in ANSI ASME B1 3M 1992 R2001

Tap 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 Tap size NF NC UNF UNC Threads per inch Basic major dia inches Basic effective dia inches Machine Screws Thread Dimensions L L Major Dia Pitch Dia Minor Dia Axis of screw thread 2A External Threads for Machine Screws and SEMS ASME B 1 1 2002 Nominal Size Thread TPI Type Major Diameter Allowance Max Min Pitch Diameter Max Min Tolerance Tensile Strength Stress Area in 2 lb min Steel screws only 0 80 0 060 UNF 0005 0595 0563 0514 3 4 quot 10 Thread Type UNC UNJC Material Rubber Stainless Steel Steel Zinc For Tap Thread Size 7 16 quot 14 1 2 quot 13 9 16 quot 12 5 8 quot 11 3 4 quot 10 3 4 quot 16 7 8 quot 9 7 8 quot 14 1 quot 8 1 1 8 quot 12 1 1 4 quot 12 1 3 8 quot 12 Installed Length 0 25 quot to 0 499 quot 0 5 quot to 0 999 quot 1 quot to 1 999 quot Threaded Insert Type Key Locking Insert Wall Style Thick Extra ThickMetric External Fasteners Thread and Fastener Sizes M20 M50 Screw Thread Designations Minor Diameter Major Diameter Pitch Diameter ANSI ASME EXTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI ASME B1 1 1989 R2001 R2001 Nomenclature are used Acceptability criteria are described in ANSI ASME