Haiyan Bolt Co., Ltd | Professional Fastener Manufacturer & Custom Parts Supplier

Who We Are

Haiyan Bolt Co., Ltd is a professional manufacturer and exporter specialized in various kinds of standard and non-standard fasteners and custom-made parts. With over 10 years of dedicated experience in the fastener industry, we began by focusing on timber bolts, T bolts, and carriage bolts — and have grown into a comprehensive industrial fastener solution provider.

Our commitment to quality, precision engineering, and customer satisfaction has made us a trusted partner across construction, machinery, transportation, energy, and infrastructure sectors worldwide.

ISO-Certified Manufacturing
Over 10 Years Industry Experience
Custom Fabrication & OEM Services
Global Export to 50+ Countries

Our Main Products

From high-tensile bolts to precision rivets and custom fastening solutions, we offer a comprehensive range of industrial fasteners designed for durability, performance, and reliability.

Timber Bolt

A36 timber bolt plain with oil, galvanized options available. Ideal for wood framing and structural connections.

Grade 4.8 | Carbon Steel

Carriage Bolt

DIN603 A307 carriage bolt, zinc-plated. Round head with square neck for secure wood-metal joints.

ASME Standard | Zinc Plated

Eye Bolt

Flat eye bolt, 4.8 grade, zinc-plated. Used in lifting, rigging, and suspension systems.

OEM Available | Carbon & Stainless

Hex Bolt

8.8 grade hex bolt, plain black oxide finish. DIN933/ANSI compliant for heavy-duty applications.

Grade 8.8 | DIN933

T Head Bolt

T head bolt, A2 304 stainless steel. Also known as hammer bolt, ideal for aluminum profiles.

Stainless Steel 304 | A2-70

U Bolt

A2-70 stainless steel U bolt. Customizable diameter and length for pipe clamping and support.

Non-Standard | Custom Bending

Shoulder Bolt

8.8 grade shoulder bolt, plain finish. Precision-machined for pivot and linkage applications.

High Tensile | DIN913

Hex Socket Bolt

A2 stainless steel 304 hex socket bolt. DIN912 standard, ideal for confined spaces.

DIN912 | Gr 10.9

Foundation Bolt

J-shape foundation bolt, hot-dip galvanized. Designed for anchoring structures to concrete.

HDG | Custom Shapes

Track Bolt

Grade 12.9 high tensile track bolt. Used in rail systems and heavy machinery mounting.

Grade 12.9 | Black Oxide

Thumb Bolt

Zinc-plated thumb bolt. Easy hand-tightening for fixtures, jigs, and tooling setups.

Hand-Tight | M6-M20

Hanger Bolt

Low carbon steel hanger bolt, zinc-plated. Used in wood-to-steel connections and hanging systems.

Threaded Both Ends

View All 100+ Products

Why Choose Haiyan Bolt?

We combine advanced manufacturing, strict quality control, and customer-first service to deliver fasteners you can trust.

10+ Years Expertise

Over a decade of specialization in fastener manufacturing and custom fabrication for global clients.

ISO Certified

Compliant with international standards including DIN, ANSI, ISO, and ASME for consistent quality.

Custom Fabrication

OEM and ODM services available. We manufacture non-standard and tailor-made fasteners to your specs.

Global Export

Trusted by clients in Europe, Middle East, Americas, Asia, and Africa with reliable logistics support.

Frequently Asked Questions

Find answers to common inquiries about our products and services.

What materials do you use?

We manufacture fasteners using carbon steel (grades 4.8 to 12.9), stainless steel (A2-70, A4-80), and alloy steel. Custom materials available upon request.

Can you produce custom fasteners?

Yes, we specialize in OEM and ODM custom fabrication. Provide your drawings or samples, and we’ll manufacture to your exact specifications.

What surface treatments do you offer?

We offer zinc plating, hot-dip galvanizing, black oxide, Dacromet, electrophoresis, and plain oil coating based on application needs.

What certifications do you have?

Our factory holds ISO 9001 certification and conducts third-party lab testing to ensure compliance with international standards.

What is your minimum order quantity (MOQ)?

MOQ varies by product type and customization level. Contact us for specific details — we accommodate both bulk and small trial orders.

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