ASTM A325 HEAVY HEX STRUCTURAL BOLTS TYPE 1
ITEM: STANDARD SPECIFICATION FOR STRUCTURAL BOLTS ,STEEL,HEAT TREATED,120/105 KSI MINIMUM TENSILE STRENGTH
MATERIAL: MEDIUM CARBON STEEL ,QUENCHED AND TEMPERED
DIMENSION: ASME B18.2.6 HEAVY HEX STRUCTURAL BOLTS
FINISHING: BLACK
ZINC PLATED
YELLOW ZINC PLATED
HOT DIP GALVANIZED

The carbon steel hex bolt has a plain finish and an external hex drive, and meets American Society of Mechanical Engineers ASME B18.2.1 specifications. The 42CRMO steel grade provides strength and offers better corrosion resistance than40CR 45K steel, especially in marine
Used in structural
Certification available upon request after purchasing.
Wrench driven, impact wrench driven, pneumatic driven.China heavy hex manufacturers
website:http://www.hualong-fasteners.com/heavy-hex-bolts/