China wholesale Molly Bolt Anchors - Machine Bolts And Nuts Button Head Bolts – KLT

Widely used important occasions with accuracy requirments, as well as under large impact, vibration or alternating load. Mainly used in highway and railway bridges, industrial and civil buildings, towers, cranes.

Hexagon head bolt specifications:
In terms of specification, the diameter of hexagon head bolts can be 4 mm, 5 mm, or even 100 mm, and there is a difference between specification and custom length. Then there is the material, some alloy, some iron, then the corresponding price is not the same, for hex bolts, the outer shape of the screw head is round, in the middle is often concave hexagonal shape, relative to hex screws, its head is hexagonal.