Self-tapping Screw

Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
Self-tapping Screw
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The self-tapping screw is used to fasten metal and nonmetal materials such as plastic, wood, cork, copper, aluminum alloy and so on. The self-tapping screw is characterized by its high-speed installation and high connection reliability. The material of the self-tapping screw can be chosen among stainless steel, carbon steel, copper, and aluminum. Carbon steel is most commonly used with the code of 1018, 1022 10B21. And the strength of screws can reach the grade of 8.8.

Parameter
ISO Metric Coarse PITCH Major Diameter Root Radius Pitch Diameter Minor Diameter male thread Minor Diameter female thread Thread Height male thread Thread Height female thread Tap Drill

P d=D r d2=D2 d3 D1 h3 H1
M1 0.25 1.00 0.036 0.838 0.693 0.729 0.153 0.135 0.75
M1.1 0.25 1.10 0.036 0.938 0.793 0.829 0.153 0.135 0.85
M1.2 0.25 1.20 0.036 1.038 0.893 0.929 0.153 0.135 0.95
M1.4 0.30 1.40 0.043 1.205 1.032 1.075 0.184 0.162 1.10
M1.6 0.35 1.60 0.051 1.373 1.171 1.221 0.215 0.189 1.25
M1.8 0.35 1.80 0.051 1.573 1.371 1.421 0.215 0.189 1.45
M2 0.40 2.00 0.058 1.740 1.509 1.567 0.245 0.217 1.60
M2.2 0.45 2.20 0.065 1.908 1.648 1.713 0.276 0.244 1.75
M2.5 0.45 2.50 0.065 2.208 1.948 2.013 0.276 0.244 2.05
M3 0.50 3.00 0.072 2.675 2.387 2.459 0.307 0.271 2.50
M3.5 0.60 3.50 0.087 3.110 2.764 2.850 0.368 0.325 2.90
M4 0.70 4.00 0.101 3.545 3.141 3.242 0.429 0.379 3.30
M4.5 0.75 4.50 0.108 4.013 3.580 3.688 0.460 0.406 3.80
M5 0.80 5.00 0.115 4.480 4.019 4.134 0.491 0.433 4.20
M6 1.00 6.00 0.144 5.350 4.773 4.917 0.613 0.541 5.00
M7 1.00 7.00 0.144 6.350 5.773 5.917 0.613 0.541 6.00
M8 1.25 8.00 0.180 7.188 6.466 6.647 0.767 0.677 6.80
M9 1.25 9.00 0.180 8.188 7.466 7.647 0.767 0.677 7.80
M10 1.50 10.00 0.217 9.026 8.160 8.376 0.920 0.812 8.50
M11 1.50 11.00 0.217 10.026 9.160 9.376 0.920 0.812 9.50
M12 1.75 12.00 0.253 10.863 9.853 10.106 1.074 0.947 10.20
Stocks
  • Y head black Sheet metal self-tapping screw

  • flat head self-tapping screw

  • stainless steel self-tapping screw

  • flat head thread-forming self-tapping screw

  • pan head thread self-tapping screw

  • shoulder self-tapping screw

  • partially threaded self-tapping screw

  • middle thread self-tapping screw

  • mini self-tapping screw

  • nonstandard customizing self-tapping screw

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