Stainless Steel Phillips Flat Head Machine Screws - Online ...
Stainless steel flat head machine screws have a flat top surface with a cone shaped bearing surface which is countersunk. This type of countersunk head leaves a flat surface once the screw has been driven in completely. Machine screws are most often used with a nut as a means of tightening unless they have a pre-threaded hole with the exact thread pitch.
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