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Note: Conversion is based on the latest values and formulas.
Screw Thread Size Major Diameter Minor Diameter Drill Size … 3/4"-10 0.75" 0.6273" 11/16" 0.6875" 7/16"-20 0.4375" 0.3762" 13/32" 0.4062" 1/2"-20 0.5" 0.4387" 15/32" 0.4688" 1/2"-28 0.5" 0.4562" 15/32" 0.4688" 9/16"-18 0.5625" 0.4943" 17/32" 0.5312" 9/16"-24 0.5625" 0.5114" 17/32" 0.5312" 5/8"-18 0.625" 0.5568" 19/32" 0.5938" 5/8" …
Tap Drill Chart: Free Fit Clearance Hole, All Materials – Microform ... 12-32 0.216" 0.1777" 1 0.228" 10-24 0.19" 0.1389" 7 0.201" 10-32 0.19" 0.1517" 7 0.201" 8-32 0.164" 0.1257" 16 0.177" 8-36 0.164" 0.1299" 16 0.177" 6-32 0.138" 0.0997" 25 0.1495" 6-40 0.138" 0.1073" 25 0.1495" 5-40 0.125" 0.0943" 29 0.136" 5-44 0.125" 0.0971" 29 0.136" ...
STANDARD TAPS SPEED RECOMMENDATIONS - Industrial … Start conservatively and increase until the machining cycle is optimized. TAP SPEEDS may be increased for coated taps, spiral point taps, fine pitch taps and when the percentage of thread is decreased.
J C GUPTA & SONS J C 5/8" - 11 unc 14.05 17/32" 9/16" - 18 unf 12.90 33/64" 3/4" - 10 unc 17.00 21/32" 5/8" - 18 unf 14.50 37/64" 7/8" - 9 unc 20.00 49/64" 3/4" - 16 unf 17.50 11/16" 1" - 8 unc 22.85 7/8" 7/8" - 14 unf 20.40 13/16" 1 1/8" - 7 unc 25.65 63/64" 1" - 12 unf 23.25 59/64" 1 1/4" - 7 unc 28.85 1-7/64" 1 1/8" - 12 unf 26.50 1-3/64" ...
Machine Screw and Drill Size Chart (English) - eberhardt.bz 7/16 0.4375 14 7/16 - 14 u 0.368 29/64 0.4531 15/32 0.4687 7/16 0.4375 20 7/16 - 20 25/64 0.3906 29/64 0.4531 15/32 0.4687 1/2 0.5 13 1/2 - 13 27/64 0.4219 33/64 0.5156 17/32 0.5312
DECIMAL EQUIVALENTS CHART - Fastenal 3/4-10 21/32 .6562 45/64 .7031 3/4-16 11/16 .6875 23/32 .7188 M20 x 2.50 17.50 .6890 M20 x 1.50 18.50 .7283 M22 x 2.50 19.50 .7677 9701309 American Carbide Tool Company ...
Tapping and clearance hole table - JL Smith & Co 10 .6273 21/32 .6562 11/16 .6875 16 .6733 11/16 .6875 45/64 .7031 49/64 .7656 25/32 .7812 20 .6887 45/64 .7031 23/32 .7188 13/16 .8125 20 .7512 49/64 .7656 25/32 .7812 53/64 .8281 27/32 .8438 7/8 .8750 9 .7387 49/64 .7656 51/64 .7969 14 …
METRIC CONVERSIONS - Engineered Parts Sourcing Inc. No. 10 0.190 4.826 No. 12 0.216 5.484 Fastener Conversion Chart Inch Equivalent Metric Size-Pitch UNC UNF ISO and IFI Rec. 1 - 64 1 - 72 M2 x 0.4 3 - 48 3 - 56 M2.5 x 0.45 4 - 40 4 - 48 M3 x .05 6 - 32 6 - 40 M3.5 x .06 8 - 32 8 - 36 M4 x .07 10 - 24 10 - 32 M5 x .08 1/4 - 20 1/4 - 28 M6 x 1 5/16 -18 5/16 - 24 M8 x 1.25
UNC UNF Pitch Drill Size Pitch Drill Size Ø (TPI) (inch) (TPI) (inch #6 32 0.106 (#36) 40 0.113 (#33) #8 32 0.136 (#29) 36 0.136 (#29) #10 24 0.149 (#25) 32 0.159 (#21) #12 24 0.173 (#17) 28 0.180 (#15) 1/4 20 0.201 (#7) 28 0.213 (#3) 5/16 18 0.257 (f) 24 0.272 (i) 3/8 16 5/16 24 0.332 (q) 7/16 14 0.368 (u) 20 0.386 (w) 1/2 13 27/64 20 29/64 9/16 12 31/64 18 33/64 5/8 11 17/32 18 37/64 3/4 10 21/32 16 11/16
Clearance Hole Drill Chart - University of Virginia 1 1.0000 1-1/64 1.0156 1-1/32 1.0313 Screw Size Close Fit Free Fit No. or Diameter Diameter Equivalent Drill Size Decimal Equivalent Drill Size Decimal Equivalent Clearance Hole Drill Chart The chart below displays a variety of common screw sizes and their clearance hole recommendations. The table provides two different class of
DECIMAL EQUIVALENT CHART - proconmach.com 43 .0890 #4-40 UNC 7/32.2188 1/4" - 32 10.20 .4016 25.00 .9843 2.30 .0906 5.60 .2205 Y .4040 7/16" - 28 63/64.9844 2.35 .0925 13/32.4063 1 1.0000 FRACTION - NUMBER - LETTER - MM DECIMAL EQUIVALENT CHART This chart is for reference only. While every effort has been made to assure the accuracy of this chart, please note that Metric/English ...
Tap Drill Chart: Tapped Hole Aluminum, Brass, Plastic – … 3/8"-32 0.375" 0.3367" 11/32" 0.3438" 7/8"-14 0.875" 0.7874" 13/16" 0.8125" 1-12 1" 0.8978" 15/16" 0.9375" 1/2"-28 0.5" 0.4562" 15/32" 0.4688" 5/8"-11 0.625" 0.5135" 17/32" 0.5312" 3/4"-10 0.75" 0.6273" 21/32" 0.6562" 7/16"-20 0.4375" 0.3762" 25/64" 0.3906" 1/2" …
TTap Drill Sizes for Forming Tapsap Drill Sizes for Forming Taps Forming Taps cold form threads in ductile materials such as brass, copper, aluminum and leaded steels as well as series 301 to 347 stainless steels. Thread size can be maintained closely since taps have no cutting edges. Unusually smooth threads can be …
INCH STANDARD COUNTERBORE - Electroimpact # 10 0.190 0.313 0.190 5/32 #5 0.206 0.332 #2 0.221 0.348 0.215 # 10 1/4 0.250 0.375 0.250 3/16 17/64 0.266 0.400 9/32 0.281 0.416 0.275 1/4 5/16 0.313 0.469 0.313 1/4 21/64 0.328 0.493 11/32 0.344 0.509 0.340 5/16 3/8 0.375 0.563 0.375 5/16 25/64 0.391 0.590 13/32 0.406 0.606 0.405 3/8
Imperial Thread Chart (Threads per inch) - Classic Fasteners 11/32 0.3438 8.731 3/8 0.3750 9.525 20 26 26 16 16 24 13/32 0.4063 10.319 7/16 0.4375 11.113 18 20/26 26 14 14 20 15/32 0.4688 11.906 1/2 0.5000 12.700 16 20/26 26 12 13 20 9/16 0.5625 14.288 16 20/26 26 12 12 18 5/8 0.6250 15.875 14 20/26 26 11 11 18 11/16 0.6875 17.463 14 26 11 3/4 0.7500 19.050 12 20/26 26 10 10 16 13/16 0.8125 20.638
Threads for the aerospace industry - YAMAWA YAMAWA has assorted "ZELX series" taps for threading stainless steel, titanium alloys and nickel-based alloys that are used in many aircraft parts.
Tap Drill & Clearance Holes for Screw Threads 0-80 to 0.5 inch 6-32 0.138 3.51 0.107 2.71 0.170 4.32 0.154 3.91 ... 10-24 0.190 4.83 0.150 3.80 0.221 5.61 0.206 5.23 10-32 0.190 4.83 0.159 4.04 0.221 5.61 0.206 5.23 12-24 0.216 5.49 0.173 4.39 12-28 0.216 5.49 0.180 4.57 1/4-20 0.250 6.35 0.201 5.11 0.281 7.14 0.266 6.76 1/4-28 0.250 6.35 0.213 5.41 0.281 7.14 0.266 6.76
Heli-Coil drilling data - inch - VARGUS 1/2 (.5000)-13 33/64 (.5156) 17/32 (.5312) 9/16 (.5625)-12 37/64 (.5781) 19/32 (.5938) 5/8 (.6250)-11 21/32 (.6562) 21/32 (.6562) 3/4 (.7500)-10 25/32 (.7812) 25/32 (.7812) 7/8 (.8750)-9 29/32 (.9062) 29/32 (.9062) 1 (1.000)-8 1-1/32 (1.0312) 1-1/32 (1.0312) 1-1/8 (1.1250)-7 1-11/64 (1.1719) 1-11/64 (1.1719)
DRILL SIZE DECIMAL EQUIVALENT & TAP DRILL CHART 13/32 10.32 .4062 z 10.49 .4130 27/64 10.72 .4219 – 11.00 .4331 7/16 11.11 .4375 29/64 11.51 .4531 15/32 11.91 .4688 – 12.00 .4724 31/64 12.30 .4844 1/2 12.70 .5000 - 13.00 .5118 33/64 13.10 .5156 17/32 13.49 .5312 35/64 13.89 .5469 drill decimal size mm equivalent – 14.00 .5512 9/16 14.29 .5625 37/64 14.68 .5781
DECIMAL EQUIVALENTS - MSC Industrial Supply 7mm 10-24 11/64 10-32 16 12-24 5mm 30 12-289/32 8 1/4-20 1 1/4-283.5mm A 5/16-18 7.3mm 19/64 5/16-2411/16 M 3/8-16N S 1/32 3/8-24 T 0.8mm 7/16-14 13/32 7/16-2024 10.5mm P 1/2-1366 15/32 1/2-2021/64 31/64 19mm9/16-12 17/32 9/16-18 13.5mm 49/645/8-11 15mm 20 5/8-18 19/32 25/323/4-1019 45/64 3/4-16 23/32 11/64 7/8-9 .823