#8-32 x 3/8" ASTM F837 Hex Drive Grade 18-8 Stainless Steel Socket Cap Screw / HEAD STYLE: A1 HEXAGON END ITEM IDENTIFICATION: TRACKING SYSTEM,ELECTRO-OPTICAL NOMINAL THREAD DIAMETER: 0.3750 INCHES SCREW MATERIAL: STEEL SCREW MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F837 ASSN STD ALL MATERIAL RESPONSES THREAD SERIES DESIGNATOR: UNC