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Thread Code Comparison Chart


Common Industry Standard Alternate industry Standard PennEngineering Thread Code ATLAS SpinTite® Thread Code ATLAS MaxTite® Thread Code
#0-80 .060 – 80 080
#1 – 64 .073 – 64 164
#1 – 72 .073 – 72 172
#2 – 56 .086 – 56 256
#2 – 64 .086 – 64 264
#3 – 48 .099 – 48 348
#3 – 56 .099 – 56 356
#4 – 40 .112 – 40 440 440 4
#4 – 48 .112 – 48 448 448 448
#5 – 40 .125 – 40 540 540 5
#5 – 44 .125 – 44 544 544 544
#6 – 32 .138 – 32 632 632 6
#6 – 40 .138 – 40 640 640 640
#8 – 32 .164 – 32 832 832 8
#8 – 36 .164 – 36 836 836 836
#10 – 24 .190 – 24 024 1024 1024
#10 – 32 .190 – 32 032 1032 10
#12 – 24 .216 – 24 1224 1224 12
#12 – 28 .216 – 28 1228 1228 1228
1/4 – 20 .2500 – 20 0420 420 25
1/4 – 28 .2500 – 28 0428 428 2528
5/16 – 18 .3125 – 18 0518 518 31
5/16 – 24 .3125 – 24 0524 524 3124
3/8 – 16 .3750 – 16 0616 616 37
3/8 – 24 .3750 – 24 0624 624 3724
7/16 – 14 .4375 – 14 0714 714 43
7/16 – 20 .4375 – 20 0720 720 4320
1/2 – 13 .5000 – 13 0813 813 50
1/2 – 20 .5000 – 20 0820 820 5020
5/8 – 11 .6250 – 11 1011 1011
5/8 – 18 .6250 – 18 1018 1018
3/4 – 10 .7500 – 10 1210 1210
3/4 – 16 .7500 – 16 1216 1216
M1.6 x 0.35 M1.6
M2 x 0.4 M2
M2.5 x 0.45 M2.5
M3 x 0.5 M3 350 M3
M3.5 x 0.6 M3.5 3560 M3.5
M4 x 0.7 M4 470 M4
M5 x 0.8 M5 580 M5
M6 x 1 M6 610 M6
M8 x 1.25 M8 8125 M8
M8 x 1 Special 810 Special
M10 x 1.5 M10 1015 M10
M10 x 1.25 Special 10125 Special
M10 x 1 Special 1010 Special
M12 x 1.75 M12 12175 M12
M14 x 2 M14 1420 M14
M16 x 2 M16 1620 M16