Hex Head Cap Screw, System of Measurement Inch, Basic Material Steel, Material Grade A307A, Fastener Finish Zinc Plated, Dia./Thread Size 1/2 In.-13, Fastener Length 4 1/2 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), Fastener Thread Style Fully Threaded, Fastener Industry Standards ASME B18.2.1, Head Type Hex, Head Height 11/32 in, Head Width 3/4 in, Package Quantity 5
O-Ring, No Metal Detectable, No X-Ray Detectable, System of Measurement Metric, Cross Section Shape Round, O-Ring Material Buna N, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 12 mm, Nominal Width 2.5 mm, Actual Inside Dia. 12 mm, Actual Width 2.5 mm, Color Black, Durometer 70 Shore A, Meets/Exceeds NBR 70, Nominal Outside Dia. 17 mm, Actual Outside Dia. 17 mm, FDA Approved No, Package Quantity 50