● Material:Middle carbon Steel 35k,45k, Alloy Steel 40Cr
● Size: M10-M36
● Grade: 8.8, 10.9, 12.9
● Surface treatment: Plain, Black, Zp Hot dip galvanizing, Dacromet, Teflon.
● Package: Small box, or 25kgs/carton, 36cartons/pallet
● Delivery: 30-60 days
Advantages: when raw materials come to the factory, we will test the composition of raw materials. During the production process, we will constantly spot check the external dimensions of screws. After heat treatment, we will check the mechanical properties. Before packaging, we will check the surface dimensions.
Hex head flange bolt is a kind of fastener composed of hexagonal head, flange (the gasket under the hexagon is fixed with the hexagon together) and screw (the cylinder with external thread).
Carbon Steel, most common seen carbon steel 10B21.
Hex head flange bolts are widely used in highway and railway bridges, including industrial and civil buildings, cranes, excavators and other heavy machinery.
There are 8.8, 10.9, 12.9 and other performance grades of hex head flange bolts.
Turn the screw head with a wrench to tighten it.
Zinc Plated, Plain, Black, Hot Dip Galvanizing
