HEX NUTS
Material: Class 4, class 8, class 10. ASTM A194 GRADE 2H, 2HM, 4, 7, 7M, 8,8M, ASTM A563 A, C, DH. Size: M5 to M90 or 1/2" to 4" Specification: DIN 934, ISO 4032, ANSI B 18.2.2, AS 1252 Finish: Plain, zinc plated, hot dip galvanized,Dacromet Fluorocarbon (Teflon,Xylan 1424, 1014, 1010 etc) and so on.