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Home Product M10*25 Hexagonal Flange Screws DIN 6921 Zinc-plated Steel Bolts Fasteners Hardware Construction

M10*25 Hexagonal Flange Screws DIN 6921 Zinc-plated Steel Bolts Fasteners Hardware Construction

M10 hex flange screws
DIN 6921 flange bolts
A2 stainless steel screws
Hexagonal flange screws M10*25
M10 hex flange screws (DIN 6921) in A2 stainless steel, 25mm length. Corrosion-resistant flange bolts with integrated washer design for secure fastening in machinery, automotive, and structural applications. Compliant with DIN 6921 standard specifications.

Product Description

The M10 hex flange screws (DIN 6921 flange bolts) are precision-engineered fasteners designed for high-load applications in mechanical assemblies, automotive systems, and structural frameworks. Featuring an M10 thread diameter with a 25mm shank length and a hexagonal head, these A2 stainless steel screws integrate a built-in flange to eliminate separate washers, providing uniform pressure distribution. The A2-grade corrosion-resistant steel ensures durability in harsh environments (-20°C to +250°C operating range) while maintaining tensile strengths up to 700 MPa. Compatible with standard M10 nuts and DIN 6921-certified tooling, their 17mm hexagonal wrench flats and 24mm flange diameter enable secure torque application. Primary advantages include vibration resistance and simplified installation, though the stainless material has lower shear strength compared to alloy steel variants. Widely used in marine equipment, chemical processing installations, and outdoor infrastructure due to their rust-proof properties and compliance with international fastening standards.
Parameter Specification
Design Standard DIN 6921 flange bolts
Material Grade A2 stainless steel screws
Thread Size M10 hex flange screws
Nominal Length 25 mm
Flange Diameter 22.3 mm
Head Height 6.4 mm
Hex Socket Size 8 mm (AF)
Thread Pitch 1.5 mm
Tensile Strength 700 MPa
Proof Load 450 MPa
Surface Treatment Passivation
Max Torque 30 Nm
Temperature Range -20°C to +300°C
question:Can I schedule official courier pickup myself?
answer:Yes, you can self-schedule official courier pickup via our online platform.
question:If a malfunction occurs and the product is refurbished, how does after-sales handle it?
answer:We provide troubleshooting support, but warranty does not apply. Contact the original seller.
question:How to track the status of a replacement order?
answer:Replacement order status is updated in real-time through your account dashboard.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Can I schedule official courier pickup myself?
answer:Yes, you can self-schedule official courier pickup via our online platform.
question:If a malfunction occurs and the product is refurbished, how does after-sales handle it?
answer:We provide troubleshooting support, but warranty does not apply. Contact the original seller.
question:How to track the status of a replacement order?
answer:Replacement order status is updated in real-time through your account dashboard.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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