DIRECT MILL FASTENER CATALOGUE

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JIJIN FASTENERS manufactures and supplies complete industrial precision fastening systems — high-tensile structural bolts, hex nuts, machine screws, double-end studs, threaded rods, and foundation anchor bolts. Trusted across civil steel construction, automotive assembly, rail transit, offshore wind farms, and heavy industrial equipment.

120,000 MTAnnual Capacity
350+Standards
15 DaysGlobal Dispatch
SHOWING 1 VERIFIED FASTENER SERIES|Direct Mill Stock
< 15 PPM Optical Sorting Guarantee
JIJIN
Full Thread Hex Bolt DIN 933 / ISO 4017 Carbon Steel & Alloy Steel Fastener for Construction and General IndustryPRODUCT

Full Thread Hex Bolt DIN 933 / ISO 4017 Carbon Steel & Alloy Steel Fastener for Construction and General Industry

Grade:Grade 8.8
Material:Carbon Steel
Standard:DIN 933/DIN 931
OEM / ODM DRAWING-TO-PART ENGINEERING
24H DFM FEASIBILITY · LIVE WORKSTATION

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We support precision non-standard cold heading, secondary 5-axis CNC machining, customized head stampings, specialized dual threads, and bespoke anti-corrosion platings. Our senior metallurgical engineers conduct Design for Manufacturability (DFM) reviews and return formal quotations within 24 hours.

Fast Tooling3–5 DaysRapid Prototyping
DFM FeedbackWithin 24hFeasibility Study
CAD SupportSTEP / DWG2D/3D Formats
Quality LevelPPAP Level 3CMM & MTR 3.1
CHAT VIA WHATSAPPlockStrict Mutual NDA Protected
Live Engineering Lab & Blueprint Metrology
verified PPAP Level 3 Ready
Non-Standard Fasteners100% Optical CMM

Direct metallurgical analysis and stress simulation for extreme duty applications.

MANUFACTURING SPECIFICATIONS

Fastener Standards & Manufacturing Capabilities

Rigorous quality control systems backed by in-house spark spectrometry, proof-load tensile testers, and 100% optical camera sorting.

verified100% In-Line Optical Inspection (< 15 PPM)
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Core Normative Standards

Full compliance with world industrial standards across dimensional tolerances and thread geometries.

DINISOASTMANSIBS / ENGB
350+ Certified Tooling Sets
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Prime Raw Materials

Sourced directly from Baosteel & Xingtai Steel with certified spark spectrometer batch heat numbers.

Carbon Steel:Q235, 35K, 45#
Alloy Steel:40Cr, 35CrMo, SCM435
Stainless Steel:AISI 304, 316 (A2/A4)
EN 10204 3.1 MTR Traceable
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Anti-Corrosion Finishes

Engineered to withstand heavy cyclic marine humidity and harsh industrial chemical exposures.

Zinc Plating:Cr3+ Clear / Yellow
HDG Galvanized:ASTM A153 1000h+
Dacromet / Geomet:1500h Salt Spray
ASTM B117 Lab Stamped
local_shipping

Supply & Delivery

Dual supply model offering immediate container stock dispatch alongside turnkey OEM tooling fabrication.

Standard Stock:50,000+ SKUs (15d Lead)
Custom Tooling:Samples in 3–5 Days
Export Logistics:FOB, CIF, CFR, DDP
PPAP L3 Automotive Ready
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ISO 4017 Bolt | JJ Fastener Factory | JJ Fastener Factory