Finish Codes

Finish CodeDescription of Standard Finish
F0Self Colour
F1Zinc plate and yellow passivate
F2Zinc plate and clear passivate
F3Zinc plate and yellow trivalent passivation to CR3
F4Zinc plate and clear trivalent passivation to CR3
F5Phosphate, de-embrittle and oil
F6Galvanise
F7 Zinc plate and black passivate 
F8Zinc Nickel plate with black passivate
F11Zinc plate, de-embrittle and yellow passivate
F12Zinc plate, de-embrittle and clear passivate
F13Zinc plate, de-embrittle and yellow trivalent passivation to CR3
F14Zinc plate, de-embrittle and clear trivalent passivation to CR3
F18Zinc Nickel plate, de-embrittle and black passivate 

ISO Tolerances for Holes & Shafts

Metric Tolerances

Nominal Sizes ( mm )H11H10H9H8H7
1 to 30.060.040.0250.0140.01
3 to 60.0750.0480.030.0180.012
6 to 100.090.0580.0360.0220.015
10 to 180.110.070.0430.0270.018
18 to 300.130.0840.0520.0330.021
30 to 500.160.10.0620.0390.025
50 to 800.190.120.0740.0460.03
80 to 1200.220.140.0870.0540.035
120 to 1800.250.160.10.0630.04

Inch Tolerances

Nominal Sizes ( inches )H11H10H9H8H7
3/64 to 1/80.00240.001570.000980.000550.00039
1/8 to 15/640.002950.001890.001180.000710.00047
15/64 to 25/640.003540.002280.001420.000870.00059
25/64 to 45/640.004330.002750.001690.001060.00071
45/64 to 1 3/160.005110.003310.002050.00130.00082
1 3/16 to 20.006290.003930.002440.001530.00098
2 to 3 1/80.007480.004740.002910.001810.00118
3 1/8 to 4 ¾0.008660.005510.003420.002130.00137
4 ¾ to 7 3/320.009840.006290.003930.002480.00157

Thread Information

Metric Male Rolled Threads

Thread SizeISO Pitch CoarseRod Dia
M40.73.43 / 3.48
M50.84.34 / 4.39
M61.05.23 / 5.28
M81.257.06 / 7.11
M101.58.86 / 8.91
M121.7510.72 / 10.77

Inch Male Rolled Threads

Thread SizeUNF PitchRod Dia
10-3232.165 / .167
1/428.222 / .224
5/1624.278 / .280
3/824.341 / .343
7/1620.396 / .398
1/220.460 / .462

Metric Female Cut Threads

Thread SizeISO Pitch CoarseTapping Drill (mm)
M40.73.3
M50.84.2
M61.05.0
M81.256.8
M101.58.5
M121.7510.2
M142.012.0
M162.014.0
M182.515.5
M202.517.5

Inch Female Cut Threads

Thread SizeUNF PitchTapping Drill (mm)
10-32324.1
1/4285.5
5/16246.9
3/8248.5
7/16209.9
1/22011.5

Spanner Flat Details on Rods

Coining Detail for Spanner Flats on Rods

Material SizeAcross FlatsWidth
3/16 and 5mm2.85 / 3.004.00
1/4 and 6mm3.85 / 4.004.00
5/16 and 8mm4.85 / 5.006.00
3/8 and 10mm6.85 / 7.008.00
1/2 and 12mm8.85 / 9.0010.00