●Material: Carbon Steel and Stainless Steel ●Surface Treatment: Galvanized, Nickel Plated, Black Oxide, Hot Dip Galvanizing, Dacromet ●Metric Strength Grades: 4.8, 8.8, 10.9, 12.9 ●Metric Thread Diameter: M3 ~ M24 ●Metric Thread Length: 4 ~ 100

Dacromet Hex Bolt: High-quality fastener with hex head, treated by Dacromet coating technology. Offers excellent corrosion resistance, salt spray resistance (up to 500+ hours), and durability in harsh environments like marine, automotive, and industrial settings. Features strong load-bearing capacity, good thread precision, and compatibility with standard tools. Non-toxic, environmentally friendly coating ensures no hydrogen embrittlement risk. Ideal for outdoor, humid, or corrosive applications requiring long-term reliability. Available in various sizes (M3-M30) and grades (8.8/10.9) to meet diverse assembly needs.

Black carbon steel hexagonal flange DIN6921 Class 10.9 hex flange bolts are primarily fabricated from high – quality carbon steel with specific alloying elements added to achieve the 10.9 – class strength requirements.

DIN6921 hex head flange bolts with yellow zinc plating, full teeth, and no serrations, conforming to ISO4162 and GB5787 standards, are mainly crafted from high – strength alloy steel in grades 8.8, 10.9, and 12.9.

Dacromet galvanized Grade 8.8 and 10.9 high – tensile B7 hex head bolts and nuts predominantly utilize high – strength alloy steel as the base material.

DIN933 Ms hex nut bolts are crafted from diverse materials, with carbon steel being a prevalent choice, available in multiple strength grades such as 4.6, 5.8, 8.8, and 12.9.

The 10.9s large hexagon bolt connection pair with half – thread and Dacromet galvanization predominantly uses high – strength alloy steel as the base material. The “10.9s” grade indicates that these bolts meet specific mechanical property requirements.

These structural bolts primarily utilize stainless steel as the base material, which endows them with excellent corrosion resistance and durability.

GB5783 Blue Zinc Plated Carbon Steel Full Thread Hex Head Bolts predominantly utilize carbon steel as the base material, commonly in grades such as 4.8, 8.8, and 10.9.