Machine screws, 18-8, 20, 1/2"
Machine screws, 18-8, 20, 1/2" |
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Spanner pan headPan heads are slightly rounded with short vertical sides. Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install. |
Spanner flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install. |
Star pin-in flat headFlat heads are countersunk (cone shaped under the head) with a flat top. Star pin-in is a tamper resistant drive that requires a special driver to install. |
One way round headRound heads are domed and look like half of a sphere. One way drive is installed with a flat bladed screw driver but cannot be removed without special tools. |
Star pin-in button headButton heads are rounded and low profile. Star pin-in is a tamper resistant drive that requires a special driver to install. |
See also |
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Metric machine screwsScrews with machine threads for use with a nut or in a tapped hole. |
Socket screwsScrews with an Allen wrench drive. |