UNF Bolt
Bystrong is a professional UNF Bolt manufacturer with over 20 years of history in China. Bystrong is a leading manufacturer of all types of bolts in China. We have a wide range of specifications to choose from. We can design and manufacture products based on the applications you provide.
- Custom sizes and colors available
- Surface coatings (including nickel plating, blue-white zinc, Dacromet, blackening, and colored zinc)
- Material certificates provided
- Full suite of certifications (including environmental management, quality management, etc.)
- Performance grades include 2, 5, and 8
- Low minimum order quantity—starting at 100 pieces
Source UNF Bolts to Grow Your Business.

UNF ASME/ANSI B18.6.3 30 Phillips Concave Large Hex Head Screws

ANSI B18.6.3 Slotted Hex Screw

ASME/ANSI B18.6.3-30 6-Lobe Socket Concave Hex Screw

Geomet UNF Hex Bolt
- Carbon Steel
- Alloy Steel


- Inner packaging: Plastic wrap, bubble wrap, PE foam, EPE foam, PP bags, etc.;
- Outer packaging: Cartons, wooden crates, wooden pallets, etc.;
- Custom packaging: Logos or other content can be printed on the packaging;
- Port of shipment: Tianjin, Qingdao, Shanghai, Yiwu,or as per your requirements.
Bystrong: Your Premier Supplier of UNF Bolts
Bystrong is a professional manufacturer of UNF bolts and screws. We can customize colors or materials according to your needs.
Bystrong owns multiple cold heading machines. We will configure the appropriate machines according to standards, dimensions, tolerances, and materials to manufacture your fastener products to meet your quality requirements and complete them at the best price.
We can process a wide range of materials—such as carbon steel, alloy steel, copper, and aluminum—and apply various surface treatments, including Dacromet, blue-white zinc plating, blackening, Geomet, and nickel plating.
Bystrong UNF Hex Bolt
We have a strong and efficient team that can provide you with immediate and professional quotes.
Simply provide your application environment, drawings, quality assurance standards, and verification requirements, and we will quickly provide you with a precise match for your needs. With solid professional skills, they can easily handle various non-standard and demanding working conditions.






