Steel Thread Rolling Screw for Plastic, Black Oxide Finish, 82 Degree Flat Head, Star Drive, #4-20 Thread Size, 1/2" Length (Pack of 100)
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<b>[Product Information]</b><br>
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<li>Thread rolling screw recommended for use in plastic</li>
<li>Steel is often used in applications where strength is the primary consideration</li>
<li>Black oxide finish offers mild corrosion resistance and lubricity</li>
<li>Flat head has an 82-degree cone-shaped bearing surface for use in countersunk holes and a flat top that fits flush with the mated surface</li>
<li>Star drive has a six-pointed indentation that provides a large contact area for the driver, resisting slippage better than a Phillips or slotted drive</li>
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