NEMA 14 - Lead Screw Options

Screw Diameter (inch) Screw Diameter (mm) Lead (inch) Lead (mm) Lead Code Travel Per Step (mm)
0.256.350.0240.6096AA0.003048
0.256.350.03941.0AB0.005
0.256.350.0250.635A0.003175
0.256.350.0481.2192B0.006096
0.256.350.051.27D0.00635
0.256.350.06251.5875F0.0079
0.256.350.0962.4384J0.0122
0.256.350.12.54K0.0127
0.256.350.1253.175L0.0159
0.256.350.1924.8768Q0.024
0.256.350.25.08R0.0254
0.256.350.256.35S0.0318
0.256.350.3338.4667U0.0423
0.256.350.3849.7536W0.0488
0.256.350.512.7Y0.0635
0.256.35125.4Z0.127
0.31580.15754M0.02
0.31580.3158T0.04
0.31580.07872G0.01
0.31580.393710C0.05
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NEMA 23 - Speed Thrust Curves

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NEMA 14 - Mechanical Specifications