Adto Fastener Hardware DIN6921 Hexagon Head Flange Bolt Grade 4.8 8.8 10.9 12.9

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DIN6921 HEXAGON HEAD FLANGE BOLT GRADE 4.8 8.8 10.9 12.9 Bolt Standards:
DIN6921 - Hexagon flange bolts

Strength Grades:
4.8: Minimum tensile strength of 400 N/mm²
8.8: Minimum tensile strength of 800 N/mm²
10.9: Minimum tensile strength of 1000 N/mm²
12.9: Minimum tensile strength of 1200 N/mm²

Material and Properties:
Carbon steel
Plain carbon steel (e.g. C10, C15, C22)
Alloy steel (e.g. 34CrMo4, 40CrMnMoS8-6)
Provides good strength and hardness
Stainless steel
Austenitic (e.g. A2, A4) - Excellent corrosion resistance
Martensitic (e.g. 1.4006, 1.4021) - Good corrosion resistance and strength

Applications:
General purpose (Carbon steel 4.8, 8.8)
High-strength applications (Alloy steel 8.8, 10.9, 12.9)
Corrosive environments (Stainless steel A2, A4, 1.4006, 1.4021)
Flange connections where a clamping surface is required

Coatings and Finishes:
Plain (uncoated)
Zinc plated (for mild corrosion resistance)
Hot-dip galvanized (for better corrosion resistance)
Stainless steel bolts may have a passivation or polishing finish

Dimensions:

Factory
TEAM
ADTO Group (hardware devision) is a professional factory specializing in the production of parts and components. It has more than 300 product material grades and has experience in batch supply of more than 100 materials. The products have high strength, high precision, high temperature resistance, corrosion resistance, high pressure resistance, fatigue resistance, Emergent advantageous features such as use in complex working conditions. We have strong equipment organization capabilities and no restrictions on product specifications and sizes. We have excellent experience in the fields of stainless steel, special steel, duplex stainless steel, high-temperature stainless steel, special stainless steel, high-temperature alloys, corrosion-resistant alloys, high-strength alloys, high-strength alloy steel and other materials. production and supply experience.
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