American (Inch) Screw Pitch Gauges

A screw pitch gauge is the perfect tool to identify exact TPI or pitch.

SPG 12-80 TPI (16 leaves) 12 14 16 18 20 24 28 32 36 40 44 48 56 64 72 80

SPG 4-42 TPI (31 leaves) 4 4.5 5 5.5 6 7 8 9 10 11 11.5 12 13 14 15 16 18 20 22 24 25 26 27 28 30 32 36 38 40 42 

SPG 4-64 TPI (22 leaves) 4 4.5 5 6 7 8 9 10 11 11.5 12 13 14 16 18 20 22 24 32 40 48 56 64

SPG 4-80 TPI (27 leaves) 4 4.5 5 6 7 8 9 10 11 11.5 12 13 14 16 18 20 27 28 32 36 40 44 48 56 64 72 80

SPG 4-84 TPI (52 leaves) 4 4.5 5 5.5 6 7 8 9 10 11 11.5 12 13 14 15 16 18 20 22 24 25 26 27 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84

SPG-UN-M 0.25-6.0mm & 4-42 TPI inch (55 leaves)  Metric- .25. 3 .35 .4 .45 .5 .6 .7 .75 .8 .9 1.0 1.25 1.5 1.75 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Inch- 4 4.5 5 5.5 6 7 8 9 10 11 11.5 12 13 14 15 16 18 20 22 24 25 26 27 28 30 32 36 38 40 42