Metric Heavy Hex Head Structural Bolt, ASTM A325 A490 Heavy Hex Bolts, Hot dip galvanized 8.8 heavy hex bolt for electric equipment Finish: ZINC, Plain Material: Steel, carbon steel Standard: DIN FINISHED: Black,ZINC HDG,Dacroment. PLAIN SIZE: M45,M4,M12 M72,M56 M3.5 LENGTH: 60MM-300MM GRADE: 4.8,6.8 8.8 10.9 TYPE: hexagon bolt customized Certificate: ISO9001 Metric Heavy Hex Head […]
Elevator Bolt, Zinc Plated Steel Elevator Bolt
Flat Countersunk Head Elevator Bolt description:
Material: Stainless Steel,Alloy steel,Carbon Steel,Brass,Aluminum and So on
Surface Finish: Passivate,Black Oxide,Zinc Plating,Nickel Plating,Dacromet Plating
Size: According to Drawing or Samples
Standard: According to Drawing or Samples.
Products:bolt,screw,nut,washer,pin,rivet and non-standard fastener
Flat Countersunk Head Elevator Bolt Certification: ISO9001
Packaging Details: box,carton,pallet
The difference between elevator bolts and ordinary bolts:
The expansion tube of the elevator bolt is thicker and longer than the expansion tube wall of the ordinary bolt.
Several knurling grooves are added to the expansion tube of the elevator bolt to increase the tensile strength,
The size of the screw head of the elevator expansion bolt is larger than that of the ordinary expansion bolt head,
Elevator bolts are used with enlarged flat washers (GB/T96), and ordinary bolts are used with ordinary flat washers (GB/T95).