Premium Fasteners from China

High-strength bolts, heavy hex nuts, stainless steel fasteners, and custom solutions — engineered for reliability, precision, and global compliance.

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Global Export Ready

Serving clients in North America, Europe, Australia, and Asia with reliable logistics.

Certified Quality

Products meet ISO, ASTM, DIN, JIS, ASME, and other international standards.

Custom Manufacturing

Tailored fasteners for unique engineering and industrial applications.

Who We Are

Ningbo Teng Qi Fasteners Co., Ltd is a specialized fastener supply company dedicated to delivering reliable, technically accurate, and competitively priced fastening solutions — with integrity and long-term value in mind.

We integrate a carefully selected network of trusted factories across China, ensuring consistent quality, flexible production capacity, and supply stability. Our team combines technical expertise with responsive service to meet the evolving needs of construction, energy, infrastructure, and manufacturing sectors worldwide.

ISO & ASTM Compliant Manufacturing
100+ Fastener Types in Stock & Custom
Cold Heading, CNC Machining, Surface Treatment
Export Experience to 50+ Countries

Class 10.9 DIN6914 Hex Bolt

High-strength structural fastener for steel connections

Our Fastener Products

Engineered to meet international standards with precision and durability

DIN6914 Hex Bolt

High-strength structural bolt, Class 10.9, plain finish. Used in steel construction and tower assembly.

DIN Standard

ASME B18.5 Carriage Bolt

Round head with square neck, ideal for wood-to-metal fastening with smooth surface finish.

ASME Standard

JIS 1186 Heavy Hex Nut

High-strength heavy hex nut with black oxidation finish, compliant with Japanese industrial standards.

JIS Standard

AS/NZS 2465 Hex Nut

Heavy hex nut designed for structural applications in Australia and New Zealand.

AS/NZS Standard

Zinc-Plated JIS Nut

Corrosion-resistant heavy hex nut with zinc plating, ideal for outdoor and marine environments.

Zinc Coated

F436 Hardened Washer

Hardened circular washer for structural bolting, used with A325/A490 and DIN6914 bolts.

ASTM F436

A193 B8 Stud Bolt

Stainless steel stud bolt, SS304/A2-70 material, used in high-temperature and corrosive environments.

Stainless Steel

L-Type Anchor Bolt

Foundation anchor bolt with L-shaped bend, used in concrete embedment for structural stability.

Anchor Fastener

Socket Head Cap Screw

High-strength cap screw with hex socket drive, ideal for precision machinery and automotive use.

DIN 912 / ISO 4762

DIN985 Nylon Lock Nut

Vibration-resistant lock nut with nylon insert, prevents loosening in dynamic environments.

Locking Nut

A325 Structural Bolt

High-strength structural bolt for steel-to-steel connections, heat-treated carbon steel.

ASTM A325

Custom Fasteners

Tailored solutions including T-head bolts, shoulder bolts, sleeve bushings, and weld nuts.

Made to Order

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Why Choose China-Bolts.com?

We deliver more than fasteners — we deliver confidence in every connection.

Quality Assurance

Every product undergoes strict quality control, including tensile testing, hardness checks, and dimensional verification to meet ISO, ASTM, and DIN standards.

Global Compliance

Our fasteners comply with international standards including ASME, ANSI, JIS, GOST, UNI, AS/NZS, and DIN — ensuring compatibility across global projects.

Advanced Manufacturing

Cold heading, CNC machining, thread rolling, and surface treatments (zinc plating, hot-dip galvanizing, black oxide) performed in certified partner facilities.

Reliable Logistics

Efficient export packaging and shipping via sea, air, or rail. FOB, CIF, DDP options available for seamless delivery worldwide.

Technical Support

Our engineers provide material selection guidance, drawing reviews, and application-specific recommendations to ensure optimal performance.

Competitive Pricing

Direct access to Chinese manufacturing networks allows us to offer high-quality fasteners at cost-effective prices without compromising integrity.

Frequently Asked Questions

What standards do your fasteners meet?

Our products comply with international standards including ISO, ASTM (A325, A490, A193), DIN, JIS, ASME, ANSI, AS/NZS, GOST, and UNI. We provide mill test certificates upon request.

Can you manufacture custom fasteners?

Yes. We specialize in custom solutions including non-standard sizes, special materials (duplex, titanium, Inconel), unique coatings, and OEM packaging. Send us your drawings or samples.

What is your minimum order quantity (MOQ)?

MOQ varies by product type and customization level. For standard items, MOQ can be as low as 1,000 pcs. Contact us for specific requirements.

Do you offer samples?

Yes, we provide free samples for standard products (shipping cost may apply). Custom samples are available at a nominal fee, refundable against future orders.

What surface treatments are available?

We offer zinc plating (blue, white, yellow), hot-dip galvanizing, Dacromet, black oxide, mechanical plating, and plain finish. Custom coatings available on request.

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