'Socket Head Cap Screw, System of Measurement Inch, Cylindrical, Basic Material Nylon, Material Grade Not Graded, #4-40, Length 1/2 In., Fastener Finish Plain, Fastener Thread Type UNC, Drive Type Hex Socket, Drive Size 3/32 In., Thread Style Fully Threaded, Thread Direction Right Hand, Thread Length 1/2 In., Head Height 3/32 In., Thread Dia. #4, Package Quantity 40'