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Home Product Hexagonal Flange Screws M6*25 | DIN 6921 Galvanized Bolts, Serrated Flange Locking, Heavy-Duty Fasteners
Hexagonal flange screws

Hexagonal Flange Screws M6*25 | DIN 6921 Galvanized Bolts, Serrated Flange Locking, Heavy-Duty Fasteners

Hex flange screws M6x25
M6x25 flange head bolts
DIN 6921 hex bolts
Hexagonal flange screws M6*25
Hex flange screws M6x25, DIN 6921 hex bolts with integrated washer surface, M6x25 flange head bolts featuring zinc-plated finish. Thread diameter 6mm, length 25mm, meets DIN 6921 standard for mechanical fastening applications. Provides secure clamping force with 8.8 strength grade. Compatible with automotive, machinery, and structural assemblies requiring vibration-resistant bolted joints.
Categories:Fasteners & Fixings
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Product Description

The Hex flange screws M6x25 (also known as M6x25 flange head bolts) are DIN 6921 hex bolts designed with a hexagonal head and integrated washer-like flange for secure fastening in heavy-duty applications. Featuring M6x25 thread dimensions, these bolts operate in temperature ranges from -50°C to +120°C, making them suitable for automotive, machinery, and construction industries. The flange distributes load evenly, reducing surface damage and improving vibration resistance, though their non-insulated design limits electrical applications. Manufactured from high-grade steel, they offer tensile strengths up to 8.8 grade. The 6mm shank diameter and 25mm length ensure compatibility with standard DIN 6921 specifications, while the flange diameter of 11.5mm provides stable clamping. Ideal for structural assemblies requiring anti-loosening properties and durability under mechanical stress.
Parameter Specification
Product Type Hex Flange Screw
Standard DIN 6921
Thread Size M6x25
Head Style Hexagonal Flange Head
Material Carbon Steel / Stainless Steel A2-70
Surface Finish Zinc Plated / Phosphated
Flange Diameter 11.5 mm
Flange Thickness 1.5 mm
Hex Key Size 5 mm
Tightening Torque 10-12 Nm (lubricated)
Tensile Strength 800 MPa (Class 8.8)
Hardness 250-320 HV
Alternative Names M6x25 Flange Head Bolts, DIN 6921 Hex Bolts
question:Can you provide shipment photos and purchase dates for similar products?
answer:Yes, upon request. Please specify product details for accurate information.
question:What is the warranty policy?
answer:Standard warranty is 1 year covering manufacturing defects. Terms apply based on product category.
question:Do you offer technical selection services?
answer:Yes, our technical team assists in selecting the right product based on your requirements.
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 you provide shipment photos and purchase dates for similar products?
answer:Yes, upon request. Please specify product details for accurate information.
question:What is the warranty policy?
answer:Standard warranty is 1 year covering manufacturing defects. Terms apply based on product category.
question:Do you offer technical selection services?
answer:Yes, our technical team assists in selecting the right product based on your requirements.
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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