Grade 8.8 High‑Strength Hex Bolt

Product Description: 

Bolts made of high-strength steel, or those requiring a large preload, can all be called high-strength bolts. 

High-strength bolts are widely used in bridges, rails, and high-voltage and ultra-high-voltage equipment connections. 

These bolts typically fracture through brittle fracture. High-strength bolts used in ultra-high-voltage equipment 

equire a large preload to ensure the container's seal.

Product Differences: 

High-strength bolts can withstand a greater load than ordinary bolts of the same specifications. 

Ordinary bolts are made of Q235 (A3) steel. High-strength bolts are made of 35# steel or other

 high-quality materials, and undergo heat treatment after manufacturing to increase their strength.