Nut Bolt, Hex Nut, M5 Screw - Tiancong Fastener Manufacturer Since 1989

Trusted Manufacturer Since 1989

Handan City Tiancong Fastener Manufacturing Co., Ltd. is an ISO9001-approved factory located in Yongnian, China — the renowned steel fastener production hub. With over 30 years of OEM manufacturing experience, we deliver precision-engineered fasteners trusted by clients across Europe, America, Asia, Africa, and the Middle East.

Our extensive product range supports major infrastructure developments including high-speed railways, skyscrapers, bridges, and industrial facilities. From standard DIN/ISO fasteners to fully customized solutions, we ensure strict compliance with international quality standards.

ISO9001 & CE Certified
30+ Years of OEM Experience
Exported to 50+ Countries
In-House Production & Quality Control

View Our Global Projects

Our Main Products

Complete range of high-strength, corrosion-resistant fasteners manufactured with advanced technology and strict quality control.

DIN 934 Hexagon Nut

Metric coarse and fine pitch threads, available in grades 4, 6, 8, 10, and 12.

Standard: DIN 934 | Material: Carbon Steel, Stainless Steel

Hex Flange Head Bolt DIN6921

Integrated washer design for even load distribution and vibration resistance.

Standard: DIN 6921 | Grade: 8.8, 10.9, 12.9

DIN933 Fully Threaded Bolt

High tensile strength bolt with full thread engagement for maximum grip.

Grade: 4.8, 8.8, 10.9 | Finish: Zinc Plated, Hot Dip Galvanized

Spring Lock Washer

Prevents loosening under vibration and dynamic loads.

Standard: DIN 127 | Material: Spring Steel

Hex Flange Self-Drilling Screw

Combines drilling and fastening in one operation for metal sheet applications.

Point Type: A, B, C, D | Thread: Coarse/Fine

DIN 912 Socket Head Cap Screw

Internal hex drive for high torque applications in tight spaces.

Grade: 12.9 | Finish: Black Oxide, Zinc

T-Bolt (T-Head Bolt)

High-strength T-shaped bolt for structural and rail applications.

Grade: 8.8 | Standard: Custom & OEM

Metric Thread Rod

Continuous threaded rod for anchoring, suspension, and structural connections.

Diameter: M6–M64 | Length: Custom Cut

High-Quality Foundation Bolt

Anchoring bolts for concrete foundations in construction and industrial use.

Finish: Hot Dip Galvanized | Custom Bending Available

DIN6914 Large Hex Bolt

Heavy-duty bolts for steel structure connections and bridge construction.

Standard: DIN 6914 | Grade: 10.9

Carriage Bolt

Smooth dome head with square neck for wood-to-metal fastening.

Diameter: M8–M20 | Finish: Zinc, Hot Dip Galvanized

DIN3570 Stainless Steel U-Bolt

Corrosion-resistant U-bolts for pipe clamping and structural support.

Material: SS304, SS316 | Custom Bending

View All 200+ Products

Why Choose Tiancong Fastener?

We combine decades of manufacturing expertise with cutting-edge technology to deliver reliable, high-performance fasteners.

Real Manufacturer Since 1989

Over 30 years of OEM production experience with in-house forging, threading, heat treatment, and plating lines.

ISO9001 & CE Certified

Strict quality control system compliant with international standards for consistent product reliability.

Export to 50+ Countries

Rich experience in export procedures and logistics, serving clients in Europe, Americas, Asia, Africa, and the Middle East.

Strong OEM Capability

Custom design, material, size, and packaging solutions tailored to your project requirements.

Global Project Experience

Our fasteners have been trusted in major infrastructure and industrial developments worldwide.

HS1058 Big Bridge Project, Ethiopia

Supplied high-strength structural bolts and anchor rods for critical bridge connections.

Country Garden #9–#21, Singapore

Provided M16–M30 hex bolts and nuts for high-rise building construction.

Power Bolt Project, Vietnam & Bombay

Custom power transmission fasteners for energy infrastructure.

South Africa Railway Project

Railway accessories and track fastening systems meeting strict safety standards.

Moscow High-Speed Railway Line 4

Supplied T-bolts, U-bolts, and custom fasteners for rail and station construction.

China Railway Building Projects

Long-term supplier of fasteners for national rail network expansion.

Frequently Asked Questions

What standards do your fasteners comply with?

Our products meet DIN, ISO, ANSI, JIS, BS, and other international standards. We also support custom specifications.

Can you produce custom fasteners?

Yes, we offer full OEM services including custom design, material selection, threading, and packaging.

What surface finishes do you offer?

We provide zinc plating, hot dip galvanizing, Dacromet, black oxide, phosphate, and custom coatings.

What is your minimum order quantity (MOQ)?

MOQ varies by product type and customization level. Contact us for project-specific pricing and quantities.

How do you ensure quality control?

We follow ISO9001 procedures with in-process inspections, material testing, hardness checks, and final audits.

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Precision Fasteners for Global Infrastructure