Flat head hexagon bolts

Product name: 4.8/8.8/10.9/12.9

Product model: M3-M100

Surface treatment: black

Material: 35 #/45#

Standard: National Standard/German Standard

Monthly production; 1000000 pieces per month

Regarding materials: Our company can customize products with different materials and specifications

Product name: Flat head hexagonal bolt

Size: M3-M20

Level : 10.9

Material: 40Cr/35Crmo

Surface treatment: black

Standard : GB/T 70.2-2008

Certificate: ISO 9001

Usage: Internal hexagonal bolts are widely used in fields such as mechanical manufacturing, building structures, automotive industry, power equipment, shipbuilding, bridge engineering, and chemical engineering