Hex Bolt

High Tensile Black Zinc Plated Galvanized Flat Square Head Bolt

High Tensile Black Zinc Plated Galvanized Flat Square Head Bolt
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With a struggling-oriented corporate culture, we continuously improve the development of the enterprise, and make the best Square Washer, concrete anchor bolts, wing nuts CE. We are committed to the pursuit of product quality and insist on the principle of specialized production. We always firmly believe that innovation is the way to achieve success, integrity is the foundation of a hundred years of business, we wholeheartedly provide you with reliable quality products and satisfactory service, welcome the new and old customers from all walks of life to patronize and guide! In the face of opportunities and challenges, we continue to surpass ourselves, and dedicate advanced products and thoughtful services to customers at home and abroad. We have the ability of meeting the needs of the market on different occasions and expanding the product coverage areas.

Shanghai Jinrui Norm Parts Supplies Co.,Ltd is one of the leading gb hex bolt manufacturers and suppliers in China, welcome to buy gb hex bolts, gb standard hex bolt, bolt dimensions, high tensile bolts from our factory and company.

GB standard hex bolt includes two standards,GB5782 and GB5783.GB5782 apply to half thread GB standard hex bolt,GB5783 refers to full thread hex bolt.All the GB hex bolt grade can be 4.8、5.8、6.8、8.8、10.9 and 12.9etc.Both of them covering the dimension from the M1.6 to M64.         The application of the GB hexagon bolt is mainly in the field of structural steel,metal buliding,oil&gas,tower&pole,wind energy; mechanical machine,automobile,home decorating and etc.




GB5782 GB5783

carbon steel


Zinc plated

Alloy steel

Yellow zinc plated


Stainless steel








Our company is based in China, facing the world, providing satisfactory High Tensile Black Zinc Plated Galvanized Flat Square Head Bolt to customers around the world, and cooperating with many manufacturers to jointly develop the market. From business negotiation to order, from purchase of raw materials to debugging, from product delivery to construction, we provide customers with professional, standardized and humanized services of consultation, planning, design, construction and after-sales. In an increasingly competitive market, in order to meet the needs of company groupization and international development, we adhere to the business philosophy of 'law-abiding, integrity, quality, and efficiency', recruiting talents from all over the world, and committed to providing better products.
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