Nonstandard Cup Head Machine Screw Brass Screw

Specifications

 1.  Nonstandard cup head machine screw brass screw 

 Machine screws:are designed to hold pieces of machinery together. Most machine screw require that the hole already be drilled and threaded, although there are a few types of machine screw capable of tapping their own holes. Like other screws, machine screw are available in a variety of shapes and sizes. Pan head machine screw are machine screws with heads that are flat on top and rounded on the sides. They're similar to oval head machine screws, which also have rounded sides; the difference is that oval head screws have a rounded top, too, as opposed to a flat top, and they have tapered bases. Both are commonly used for metal applications. Pan head machine screws can also be differentiated from flat head screws, which have flat tops, as well. However, flat head screws are tapered on the underside of the head so they can lie flush with the material they're driven into. Meanwhile, round head screws have flat bottoms with rounded heads, much like half a sphere. Round head screws can't sit flush with the material they're driven into; instead, their heads poke out like little bumps. 

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if u  need SUS304 DIN7991 Hex Countersunk Head Machine Screw M6.0X18 ,pls cantact me as folllow ways

 DONGGUAN JINJIA HARDWARE PRODUCTS CO.,LTD.

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