Precision Engineering & Direct Mill Manufacturing
Tier-1 Source Manufacturer in China's Fastener Capital — Delivering Certified Standard Fasteners & Custom Cold-Formed Components Worldwide Since 2008.
Rooted in China's Fastener Capital, Supplying Heavy Industry Globally
JIJIN FASTENERS (冀金紧固件) is a premier full-cycle industrial fastener manufacturing mill headquartered in Yongnian, Handan, China's largest fastener production hub. Integrating state-of-the-art multi-station cold heading, precision hot forging, continuous atmospheric heat treatment, automated anti-corrosion plating, and optical sorting into one unified industrial base.
Our certified portfolio spans high-tensile hex bolts (Grade 8.8, 10.9, 12.9), heavy hex structural bolts (ASTM A325, A490), socket head cap screws, precision nylon lock nuts, heavy hex nuts (ASTM A194 2H), hardened washers (F436), flange fasteners, double-end threaded studs, and foundation anchors. We export to over 85 countries across Europe, North America, Latin America, the Middle East, and Southeast Asia.
Two Synergistic Pillars: Standard Stock Wholesale & Bespoke OEM Engineering
Whether procuring standard DIN/ISO fasteners by the 20ft container or developing proprietary non-standard fasteners from 2D/3D engineering prints, JIJIN delivers turnkey source manufacturing.
Standard Certified Fasteners Direct Inventory
Massive standing inventory of finished and semi-finished standard hex bolts, socket screws, machine studs, and heavy nuts ready for immediate container consolidation.
Bespoke Blueprint & Drawing-to-Part Engineering
Proprietary cold heading tooling development, CNC secondary precision turning, customized head markings, and custom anti-corrosion finishes.
Enterprise Scale & Production Benchmarks
17 years deep industrial dedication headquartered in Yongnian, China's official fastener capital.
Direct sea export to Europe, North America, Middle East, and Latin America under FOB/CIF/DDP SLA.
High-speed multi-station cold heading formers (4-die to 6-die) and precision thread rolling machine units.
18 in-line optical glass plate screening machines with dual lasers delivering zero-defect robotic assembly.
Manufacturing Infrastructure & Cold-Forming Capacity
6 In-House Advanced Workshops · 100% Integrated Metallurgical Control · Zero Subcontracting. Total control from wire annealing to sea container stuffing.
Cold Heading & Thread Rolling Hub
M2 – M48 Metric / UNCEquipped with 4-station, 5-station, and 6-station high-speed cold heading units. High-pressure circular thread rolling retains unbroken grain lines along the thread profile, radically maximizing tensile resistance and dynamic shear performance.
Continuous Mesh-Belt Heat Treatment
Atmosphere ProtectedThree computer-controlled continuous mesh-belt furnace lines guarantee precise quenching, zero decarburization, and homogeneous core hardness.
Dual-Laser Optical Sorting (<15 PPM)
18 Laser UnitsHigh-speed glass plate rotary sorting inspecting pitch integrity, total length, head cracks, and shank straightness for automotive automated assembly.
Prime Wire Annealing & Spheroidizing
Top-tier alloy wire billets (SCM435, 40Cr, 10B21) treated via protective spheroidized annealing and phosphating drawing to prevent microcracks.
Automated Anti-Corrosion Plating & Coating
Comprehensive surface treatments: Cr3+ Zinc, ASTM A153 Hot-Dip Galvanizing (HDG), Geomet 500B, Dacromet, and offshore Zinc-Nickel (ZnNi).
Robotic Moisture-Barrier Box & Staging
Automated counting into 25kg export cartons with desiccated inner moisture barriers, palletized with waterproof shrink wrapping for FCL shipping.
Rigorous Metallurgical QA & 4 Core Defense Gates
Compliant with IATF 16949 and ISO 9001:2015 frameworks. Every production heat lot is tested in-house and dispatched with an EN 10204 3.1 Material Test Report (MTR).
Raw Material Spectrometry
Direct-reading optical spark emission spectrometer testing C, Si, Mn, Cr, Mo, B chemistry to match steel heat certificates with 100% traceability.
In-Process & Thread Metrology
CMM coordinates, optical comparators, and thread pitch go/no-go ring gauges verifying 2D/3D dimensions down to ±0.01mm tolerance.
600kN Proof-Load Tensile Rig
Destructive proof-load tensile stress, wedge tensile testing, and Rockwell/Vickers hardness validation for Grade 8.8, 10.9, and 12.9 fasteners.
1,500h Salt Spray & Laser Sort
ASTM B117 cyclic neutral salt spray chamber and automated 18-station optical sorting guaranteeing <15 PPM automotive zero-defect standard.
Official Mill Credentials & Third-Party Audit Reports
Verified original certificates and third-party inspection documentation
End-to-End Precision Engineering & Export Protocol
Seamless six-tier procurement governance from initial DFM feasibility review to guaranteed 15-day containerized global dispatch. Traceable, contract-backed, zero friction.
Inquiry Audit & Quote
Tiered matrix formulation based on DIN/ISO specs, volume tiers, and custom alloy metallurgy with transparent FOB/CIF pricing breakdowns within 2 hours.
DFM Review & CAD Feasibility
In-depth 2D/3D print evaluation (STEP, DWG, PDF), cold-heading die stress simulation, and material yield analysis executed under strict mutual NDA protection.
Rapid Tooling & Physical Samples
High-precision in-house die tooling machining, pilot cold-forming sample production, and express international air courier dispatch via DHL/FedEx in 3–5 working days.
Batch Cold Forming & Heat Treatment
High-speed multi-station forming across 68 machine formers, circular thread rolling, and computer-controlled continuous atmospheric mesh-belt furnace quenching.
100% Optical Laser Sorting & MTR 3.1
Rotary glass plate dual-laser 360° inspection for thread pitch and head cracks, 600kN tensile proof-load validation, and certified EN 10204 3.1 MTR documentation.
Port Dispatch & FCL Container Shipping
ISPM-15 export pallet staging, desiccated inner moisture barrier packaging, customs declaration at Tianjin/Ningbo ports, and direct bill of lading issuance.
Engineered for Demanding Industrial Applications
Supplying certified structural bolts, vibration-proof socket screws, and corrosion-resistant fasteners across global critical infrastructure.
Civil & Mega Bridges
Target Fasteners:
ASTM A325 / A490 Heavy Hex Structural Bolts & 2H Nuts
Automotive Assembly
Target Fasteners:
DIN 912 / ISO 7380 Socket Cap & Flange Screws (< 15 PPM)
Rail & Track Transit
Target Fasteners:
Pre-Stressed Track Plate Screws & Heavy Foundation Anchors
Offshore Wind & Solar
Target Fasteners:
Grade 10.9 ZnNi / HDG Wind Tower Flange Studs & Solar Screws
Partner with a Certified Source Mill for Your Fastener Supply
Our technical sales engineering desk directly calculates tiered container FOB/CIF pricing, reviews CAD prints, and prepares free test sample coupons within 2 business hours.
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