Hexagonal Flange Screws M6x12 DIN 6921 - A2-70 Stainless Steel Hex Head Flange Bolts Zinc Plated 10.9 Grade Industrial Fasteners

Hex flange screw M6x12

DIN 6921 M6 flange bolt

M6x12 flange head screw

Hexagonal flange screws M6*12

Hex flange screw M6x12, compliant with DIN 6921 M6 flange bolt standard, features a hexagonal flange head design for secure fastening. This M6x12 flange head screw combines integrated washer functionality with durable construction, ideal for industrial applications requiring vibration resistance and load distribution.

Specification

SEODescription

The Hex flange screw M6x12, conforming to DIN 6921 M6 flange bolt standards, is a metric hexagonal flange head screw designed for robust mechanical fastening. With an M6x12 thread (6mm diameter, 12mm length), it integrates a built-in washer-like flange for even load distribution, eliminating the need for separate washers. Typically crafted from grade 8.8 carbon steel or A2/A4 stainless steel, this fastener offers corrosion resistance and a tensile strength up to 800 MPa. Operating effectively within -50°C to +150°C, it suits automotive, machinery, and industrial equipment applications requiring vibration resistance. The M6x12 flange head screw simplifies assembly with its single-piece design but requires precise torque (recommended 9-11 Nm) for optimal performance. Its key advantages include space efficiency and reduced loosening under stress, though installation demands compatible hexagonal tools. The DIN 6921-compliant geometry ensures compatibility with standardized industrial components.

SEOSpecification

Parameter	Specification
Product Designation	Hex flange screw M6x12
Standard	DIN 6921 M6 flange bolt
Thread Size	M6 (6mm nominal diameter)
Length Under Head	12mm
Flange Diameter	11.5mm
Head Height	5mm
Hex Socket Size	5mm (ISO 4762)
Material Grade	Class 8.8 steel / A2-70 stainless
Surface Treatment	Zinc-plated / Geomet® coating
Torque Value	10-12 Nm (lubricated)
Flange Type	Integrated washer flange head screw
Thread Pitch	1.0mm (standard coarse thread)
Thread Length	8mm (partial threading)
Application	Automotive assemblies, machinery, structural connections

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SEOQandA_Product

question:What causes hexagonal flange screws M6*12 to strip during installation?
answer:Using incorrect tool size. Solution: Use properly sized hex key for secure fit.
question:Why do M6*12 hexagonal flange screws loosen under vibration?
answer:Insufficient locking mechanism. Solution: Apply thread locker or use spring washer.
question:How to prevent corrosion on M6*12 hexagonal flange screws?
answer:Exposure to harsh environments. Solution: Use stainless steel or coated screws.
question:What causes difficulty in threading M6*12 hexagonal flange screws?
answer:Misaligned or damaged threads. Solution: Ensure proper alignment and clean threads before installation.
question:Why does the flange on M6*12 screws deform during tightening?
answer:Excessive torque applied. Solution: Use torque wrench to apply recommended torque value.