Zinc Plated Hex Flange Bolt High Strength Hexagon Flange Bolt combines hex head and flange washer into an integrated structure, removing the need for separate washers during installation. The electro-galvanized surface forms a compact zinc protective layer that effectively blocks oxidation and slight salt spray erosion in outdoor environments. This integrated design cuts assembly time by roughly 30% compared with ordinary hex bolts, widely used in machinery equipment, automobile frames, photovoltaic supports and pipeline connection projects.
Zinc Plated Hex Flange Bolt High Strength Hexagon Flange Bolt is produced from medium carbon steel and processed by quenching and tempering heat treatment to reach standard high tensile strength. Optional anti-slip serrations on the flange surface boost fastening friction and avoid loosening under continuous vibration. Electroplating thickness is stably controlled at 5–12 μm to guarantee consistent rust-proof performance for every batch. Ningbo Gangtong Zheli Fastener Co., Ltd adopts fully automatic multi-station cold forging machines to precisely control dimensional tolerance.
Zinc Plated Hex Flange Bolt High Strength Hexagon Flange Bolt fits diverse fastening occasions including construction machinery, vehicle frames, solar mounting systems and electrical cabinets. Full regular sizes are kept in stock, and customized size and plating requirements are acceptable for bulk purchases. Every finished bolt undergoes hardness test, plating thickness inspection and thread gauge check before shipment. Ningbo Gangtong Zheli Fastener Co., Ltd offers stable bulk supply and customized fastener solutions for global industrial buyers.
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