HEX BOLTS
Material:
Class 4.8, class 8.8, class 12.9, Grade 2, grade 5 and grade 8    
ASTM A193 B7, B7M, B8, B8M and B16, ASTM A354 GRADE BC, BD    
ASTM A320 L7, L7M, ASTM A325, A490, A307, A449, SAE 429    
Size: M5 to M42 or 1/2" to 2-1/2"    
Specification: DIN 931, 933, ISO 4014, 4017, ANSI B18.2.1, AS 1252    
Finish: Plain, zinc plated, hot dip galvanized, Dacromet    
Fluorocarbon (Teflon, Xylan 1424, 1014, 1010 etc) and so on