Flange Bolt & Flange Nut

Serrated hex flange bolts (DIN 6921) & flange nuts (DIN 6923) for anti-loosening, no washer needed. Grade 8.8–10.9 & stainless. Custom OEM, fast factory quote.

Product Name:
Hex Flange Bolt & Hex Flange Nut (serrated / non-serrated)
Material:
Carbon steel (Grade 8.8 / 10.9), stainless steel (SS304 / SS316, A2 / A4)
Surface Finish:
Zinc plated, Dacromet, black oxide, hot-dip galvanized, plain, passivated (stainless)
Size:
M5–M20; Imperial equivalents available
Thread Type:
Coarse/fine; bolts fully or partially threaded; nuts internally threaded
Head Type:
Hex head with integrated washer-like flange (bolt); hex nut with flange (nut)
Drive Type:
External hex (wrench / socket)
Length:
Bolt: approx. 10 mm – 100 mm; nut height per standard
Drill Point Type:
N/A — flat/chamfered End
Hardness:
Class 8.8 / 10.9 (bolt); Class 8 / 10 (nut); stainless A2 / A4
Suitable Material:
Metal-to-metal; flange spreads load, serrations resist loosening (no separate washer needed)
Applicable Standard:
Bolt: DIN 6921, JIS B1189; Nut: DIN 6923, ISO 4161, GB 6177
Application:
Automotive, machinery, equipment assembly — where speed and anti-loosening matter
Customization:
Customizable material, size, length, serration, grade, finish, OEM marking, packaging

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Product Description

Flange bolts and nuts are engineered for efficiency and maximum holding power, featuring a built-in, flared base that acts as an integrated washer. By combining two components into one, these fasteners streamline the assembly process and significantly increase the bearing surface area. This ensures a more secure connection, distributes clamping loads evenly, and prevents the fastener from embedding into softer mating materials. feature a built-in, flared base that acts as an integrated washer. By combining two components into one, these fasteners streamline the assembly process and significantly increase the bearing surface area. This ensures a more secure connection, distributes clamping loads evenly, and prevents the fastener from embedding into softer mating materials.

Hot Tags: Flange Bolt & Flange Nut,DIN 6921/6923,Grade 8.8–10.9, stainless steel

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