We are Hebei Binli Fasteners, a trusted square head bolt manufacturer with years of experience in producing high-quality square bolts for global export markets. Our factory specializes in carbon steel, stainless steel, and high-performance alloy square head bolts, offering full OEM, custom sizes, and surface finishes.
With robust production lines (cold heading, hot forging, heat treatment), we produce millions of square head bolts per month to meet large-scale orders. Our factory supports OEM / ODM customization for size, thread, grade, and packaging.
Wide Material Range & Strength Grades
Carbon Steel (grades 4.8, 8.8, 10.9, 12.9)
Stainless Steel (A2-304, A4-316)
Alloy Steel & Specialized Alloys (on request)
This flexibility allows us to serve industries like structural steel, heavy machinery, petrochemical, and more.
We manufacture stainless square head bolts to international and regional standards: DIN 603 / 480, ANSI / ASME B18.2.1, JIS B1182, BS, etc. This ensures compatibility and compliance for importers and OEM customers.
To meet different environmental requirements, we offer a variety of surface finishes:
Zinc plating (electro)
Hot dip galvanizing (HDG)
Black oxide
Dacromet / Geomet / Zn-Ni coatings
These surface options make our square head bolts suitable for outdoor, marine, or structural applications.
ISO 9001 certified quality management system
Strict in-process and final inspections (tensile tests, dimensional checks)
Material certification available upon request
Export-ready supply chain with CE / RoHS compliance when needed
Monthly capacity to support large-volume export orders
Flexible Minimum Order Quantity (MOQ) to support both trial orders and bulk procurement
Packaging options: bulk bags, boxes, OEM-branded packagingReliable global logistics and export documentation support
We provide a wide range of standard and customized square head bolt specifications to suit different applications:
Our square head stainless steel bolts are used in many demanding industries due to their robust design and ease of installation:
Steel Structural Engineering: Used in steel frameworks, bridge construction, and structural connections.
Heavy Machinery & Construction Equipment: Ideal for heavy-duty bolting in cranes, excavators, and railway equipment.
Oil, Gas & Petrochemical: High-strength, corrosion-treated bolts used in critical fastener joints.
Marine & Offshore (with proper coatings): Excellent resistance to corrosive environments.
Restoration & Heritage Projects: Square head bolts are popular in renovated historic buildings for an authentic, rustic look.We welcome global distributors, importers, construction firms, and OEMs to contact us for square head bolt solutions. Contact Custom Square Head Bolt Manufacturer Today – we are ready to support your square head bolt needs with high quality, wide customization, and reliable delivery.
