Socket Flat Head Screw, Head Type Flat, System of Measurement Inch, Drive Type Socket, Drive Size 5/16 in, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, Thread Size 1/2 In.-13, Minimum Thread Length 1 1/2 in, Fastener Length 1 1/2 in, Head Height 0.251 in, Head Diameter 0.938 in, Pack Size Small Pack, Thread Style Fully Threaded, Special Features Not Applicable, Countersink Angle 82 Degrees , Dimensional Standards ASME B18.3, Flange Diameter Not Applicable This socket head cap screw with flat head features an 82 Degrees countersunk flat head. Flush mounts so moving parts can pass over freely. Not ideal for applications that require optimal antifatigue properties. Minimum thread length is calculated using the screw's length. The formula is dia. X 2 + 1/4". This small.
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