IATF 16949 / ISO 9001:2015

Precision Fasteners & Industrial Nuts

Delivering DIN, ISO, ASTM & ANSI certified high-tensile bolts, socket cap screws, and specialty alloy machine fasteners with zero-defect optical sorting and 15-day rapid global container shipping.

Yongnian Source Plant / Direct Mill
Standard DIN/ISO Fastener Stock
Custom Screws & Bolts Support
100% Optical Sorting & PPAP L3
50,000+Regular SKUs & Tons Stock
< 15 PPMDefect Rate Threshold
85+Served Countries
Fast15-Day Dispatch Support
CERTIFIED FASTENER PORTFOLIO

High-Tensile Precision Screws & Fasteners Catalog

Manufactured to DIN, ISO, ASTM, and custom OEM prints with 100% optical camera sorting, full dimensional trace certificates, and factory-direct tiered container pricing.

100% In-Line Optical Inspection (< 15 PPM)
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DIN 933 / ISO 4017 Hex Head Bolts
DIN 933 / ISO 4017Grade 8.8–12.9
MOQ 10,000 pcs

Fully Threaded Hex Head Bolts & Machine Screws

Engineered for heavy machine frames, steel towers, and high-vibration automotive subframes with rolled threads.

Thread SizesM3 – M64 | 1/4"–2-1/2"
Material Class8.8 / 10.9 / 12.9
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DIN 912 Socket Head Cap Screws
DIN 912 / ISO 4762Grade 12.9 Alloy
MOQ 15,000 pcs

Hexagon Socket Head Cap Screws (Allen Bolts)

High-tensile deep socket drive designed for precision injection molds, machine tool fixtures, and hydraulic assemblies.

Thread SizesM2 – M36 | #4–1-1/2"
Material ClassClass 10.9, 12.9, 316SS
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DIN 7991 Countersunk Flat Head Socket Screws
DIN 7991 / ISO 1064290° Flush Head
MOQ 10,000 pcs

Countersunk Flat Head Socket Screws

Flush aerodynamic surface mounting for sliding tracks, high-precision electronic enclosures, and clean machinery panels.

Thread SizesM3 – M24 | Metric/UNC
Material Class10.9 Alloy, A2-70, A4-80
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ISO 7380 Button Head Socket Screws
ISO 7380 / DIN 6921Flange / Button
MOQ 20,000 pcs

Button Head Socket & Flange Screws

Integrated load-distributing washer flange or low-profile dome heads protecting clamped sheet metal surfaces.

Thread SizesM3 – M16 / Flange UNC
Material ClassClass 8.8, 10.9, A2 Stainless
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ASTM A325 Heavy Hex Structural Bolts
ASTM A325 / A490Structural Grade
MOQ 5,000 pcs

Heavy Hex Structural Bolts & Nut Assemblies

High-strength heavy hex connection hardware paired with ASTM A194 2H nuts and F436 washers for bridges and pre-fab steel structures.

Thread Sizes1/2" – 1-1/2" UNC/UNF
Material ClassType 1 Alloy / Type 3 Steel
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Custom OEM CNC Fasteners
OEM / ODM CustomPrint to Part
MOQ 2,000 pcs

Custom OEM CNC & Cold Formed Fasteners

Turnkey production from 2D/3D CAD prints (STEP/DWG) with customized knurls, step-shanks, dual threads, and exotic alloys.

Engineering Print2D/3D CAD to Samples (7d)
Precision±0.01mm Optical Checked
Modern Smart Fastener Manufacturing Factory Plant in Yongnian
ApexFast Smart Factory Plant60+ Multi-Station High-Speed Formers
Yongnian Fastener Capital · ApexFast Industrial Base
Direct Source Mill
ABOUT APEXFAST INDUSTRIAL

Direct Mill Source in China's Premier Fastener Hub

ApexFast Precision Fasteners is an integrated industrial manufacturer strategically situated in Yongnian, China’s fastener manufacturing capital. With registered capital of RMB 3,000,000 and advanced multi-station high-speed formers, our direct mill output exceeds 8,000 metric tons per month across high-tensile structural bolts, machine screws, socket cap fasteners, and precision cold-formed components.

All standard items strictly comply with DIN, ISO, ANSI, ASTM, and BS standards across property classes 8.8, 10.9, 12.9, and A194 2H. Accredited under ISO 9001:2015, ISO 14001, and IATF 16949 systems, our facility operates automated high-speed dual-laser optical sorting machines and an in-house metallurgical testing center to guarantee zero-defect container export shipments to over 85 countries worldwide.

IATF 16949 & ISOTier-1 Automotive Ready
EN 10204 3.1 & PPAP100% Heat Batch Trace
Yongnian Fastener Base · Monthly Output 8,000+ Tons
8,000+ TonsMonthly CapacityHigh-Tensile Cold Formed Output
60+ UnitsMulti-Station FormersUp to M48 High-Speed Machine Lines
< 15 PPMLaser Sorting StandardDual-Laser 100% In-Line Inspection
85+ NationsDestination CountriesDirect Sea Container Export Staging
MANUFACTURING TIMELINE

Direct Mill Manufacturing Workflow

Four rigorous quality milestones engineered from raw wire rod certification to sealed container dispatch.

Full Traceability: ASTM / DIN / ISO Control Plans
Raw Material Wire Rod & Metallurgical Lab Testing
01 原材料检验Spectral Analysis

01. Raw Material Verification

Prime steel coil chemical spectroscopy, metallurgical inclusion testing, and wire rod draw-annealing to ensure defect-free grain flow.

Spark Emission Lab100% Heat Batch Trace
High-Speed Multi-Station Cold Heading Formers
02 生产加工350 pcs/min Forming

02. Cold Heading & Thread Rolling

Multi-stage high-speed cold heading formers producing continuous internal grain flow, followed by high-precision circular die thread rolling.

M3–M48 Machine LinesUnbroken Grain Lines
Dual-Laser In-Line Optical Camera Fastener Sorting System
03 质量检测< 15 PPM Laser Checked

03. Optical Sorting & Metrology

100% rotary glass plate camera screening for pitch, burrs, and head cracks, paired with salt spray corrosion and tensile proof load testing.

Dual-Laser OpticalZero-Defect Standard
Continuous Atmosphere Mesh-Belt Heat Treatment Kiln
04 包装交付FCL Staging Ready

04. Heat Treatment & Packaging

Continuous atmosphere quenching furnace hardening (Class 8.8-12.9) followed by robotic carton counting and seaworthy pallet wrap dispatch.

Controlled Atmos15-Day Global Port Lead
KEY INDUSTRIAL APPLICATIONS

Engineered for Demanding Industrial Sectors

Supplying certified structural bolts, vibration-proof socket screws, and corrosion-resistant fasteners across global critical infrastructure.

Tested for Severe Shear, Vibration & Marine Environments
Construction & Mega Bridge Engineering
Civil Infrastructure

Construction

Target Fasteners:

ASTM A325 / A490 Heavy Hex Structural Bolts & 2H Nuts

Hot-Dip Galvanized (HDG) coating with high fatigue yield strength for steel truss girder bridges and mega tower structures.
Automotive Robotic Assembly Line
Powertrain & Chassis

Automotive

Target Fasteners:

DIN 912 / ISO 7380 Socket Cap & Flange Screws (< 15 PPM)

Zero-defect optical sorting calibrated for robotic automatic feed screwdrivers in engine blocks and electric vehicle subframes.
High-Speed Railway Infrastructure
High-Speed Rail

Infrastructure

Target Fasteners:

High-Tensile Track Plate Screws & Heavy Pre-Stressed Anchors

Engineered with extreme cyclic fatigue strength and anti-loosening thread geometries for high-speed rail sleepers.
Offshore Wind Turbines Farm
Renewable Energy

Energy

Target Fasteners:

Grade 10.9 HDG & ZnNi Anti-Corrosive Tower Flange Studs

Certified for 1,500-hour salt spray resistance to endure punishing open-ocean marine salinity and offshore wind conditions.
Engineers reviewing CAD blueprints and fasteners with mechanical calipers
In-House Tooling & Mold Engineering
2D/3D CAD Formats Supported

STEP, IGES, DXF, DWG, PDF blueprints

CMM ±0.01mm
OEM & ODM CUSTOM FASTENERS

Turnkey Non-Standard Custom Fastener Engineering

When standard DIN or ISO screws cannot meet your exact load requirements, our senior engineering team develops proprietary cold heading tooling and CNC secondary machining directly from your CAD prints.

01

Drawing & Spec Upload (2D/3D)

Upload STEP/DWG drawings with target yield strength, hardness (HRC), and coating salt spray requirements under mutual NDA.

02

Feasibility & Tooling Design

Finite element simulation of cold heading stages, die machining, and internal grain structure optimization.

03

Rapid Prototype Sampling (3–5 Days)

Pre-production first-article fasteners machined and dispatched via DHL/FedEx with full CMM dimensional audit.

04

Batch Precision Manufacturing

High-speed production run with 100% optical verification, full PPAP Level 3 documentation, and container loading.

GLOBAL TRACK RECORD

Featured Engineering Projects

Supplied over 2,400 metric tons of high-tensile fasteners to premier mega bridges, automotive assembly lines, and offshore installations.

100% On-Time Global Container Delivery
Mega Infrastructure Sea Suspension Bridge
FLAGSHIP CASE STUDY2,400 Metric Tons

Cross-Strait Suspension Mega Bridge Steel Truss Girders

Supplied 2,400 metric tons of ASTM A325 / A490 high-strength structural bolts paired with ASTM A194 2H nuts and F436 hardened washers. Treated with Hot-Dip Galvanizing (ASTM A153) to resist severe typhoon vibrations and 30-year marine splash zone salinity.

FASTENER TYPEASTM A490 Heavy Hex
CORROSION COATINGHDG 1,000h Salt Spray
CERTIFICATIONPPAP L3 & 3.1 MTR
Tier-1 Automotive Robot Chassis Line
AUTOMOTIVE POWERTRAIN

Tier-1 EV Engine Subframes

DIN 912 Class 12.9 · < 15 PPM

North Sea Offshore Wind Turbines
OFFSHORE ENERGY

North Sea Wind Turbines

M36 Flange Studs · ZnNi 1500h

High Speed Bullet Rail Transit
RAIL TRANSIT

High-Speed Ballast Line

DIN 933 Class 10.9 Pre-Stressed

Custom Hydraulic Presses & Marine Equipment
PRECISION TOOLING

Custom Hydraulic Press

Custom Step-Shank M48 Bolts

Strict Multi-Tier Quality Certification & Zero-Defect Guarantee

Our quality management system is fully accredited under automotive IATF 16949 and ISO 9001:2015. We guarantee 100% metallurgical traceability with physical EN 10204 3.1 Material Test Reports (MTR), PPAP Level 3 documentation, and dual-laser optical sorting delivering an automotive defect rate < 15 PPM.

ISO 9001:2015IATF 16949:2016ISO 14001EN 10204 3.1 MTRPPAP Level 3
Official Mill Credentials & Third-Party Audit ReportsOriginal stamped certificates & batch inspection sheets verified for export
Valid Through 2026/2027 · Fully Certified
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IATF 16949 Automotive Quality Management Certificate
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ISO 9001:2015 Quality Management System Certificate
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EN 10204 3.1 Mill Test Certificate (MTR) Inspection Document
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TÜV Rheinland and SGS Laboratory Test Report Document
Require full PPAP Level 3 documentation or Mill Test Sample coupons?Complete chemical composition and dimensional CMM reports available for instant audit download.
Quality Control Process →
PROCUREMENT & TECHNICAL CLARIFICATIONS

Frequently Asked Questions

Clear answers for global fastener buyers regarding minimum order quantities, optical sorting thresholds, anti-corrosion finishes, and international container logistics.

ApexFast Senior Industrial Fastener Engineers in Metrology Lab
ApexFast Engineering Desk2-Hour Rapid CAD Drawing Review
Direct Plant

Have specific engineering tolerance requirements, special thread pitch requests, or proprietary CAD prints? Contact our direct engineering and international export desks:

Alex ChenTechnical Lead
Lead Applications & Fastener Engineer
WhatsApp
Elena ZhangExport Sales
Global Sales & Export Director
WhatsApp

01What are standard Minimum Order Quantities (MOQ) and sample lead times?

For standard DIN/ISO precision screws and high-tensile bolts in stock, MOQ starts at 5,000 to 10,000 pcs per size. For custom OEM cold-formed prints or specialized alloy screws, tooling MOQ is typically 20,000 pcs. Free physical pre-production test samples are prepared in 3–5 business days and dispatched via express air courier (DHL/FedEx).

02Can you provide EN 10204 3.1 Material Test Reports (MTR) and PPAP Level 3?

Yes, absolutely. Every container shipment is accompanied by a certified EN 10204 3.1 chemical composition and tensile proof-load test report directly stamped by our certified metallurgical QA lab. For automotive and Tier-1 industrial buyers, full PPAP Level 3 packages (Control Plan, FMEA, Gage R&R, IMDS) are provided.

03What automated optical sorting and defect rate thresholds do you guarantee?

We operate high-speed glass plate laser optical sorting machines inspecting thread completeness, head cracks, concentricity, and total length. We guarantee a defect rate below < 15 PPM, perfectly calibrated for robotic automatic feed screwdrivers on high-speed automotive lines.

04Which anti-corrosion surface treatments and salt spray standards do you deliver?

We provide Cr3+ Trivalent Clear/Yellow Zinc, Hot-Dip Galvanizing (ASTM A153 / ISO 10684), Black Oxide, Geomet 500B, Dacromet, and Zinc-Nickel (ZnNi) coatings delivering 480 to 1,500+ hours neutral salt spray resistance (ASTM B117) without red rust.

05What are your standard payment terms, Incoterms, and container delivery lead times?

We support FOB Tianjin/Qingdao/Shanghai, CIF, CFR, and DDP to your designated overseas warehouse. Standard payment terms include T/T (30% deposit, balance against Bill of Lading copy) and Irrevocable L/C at sight for established accounts. Regular FCL container lead time is 12–15 days.

06Can you accommodate custom OEM customer prints and provide mutual NDA protection?

Yes. Over 35% of our monthly mill volume consists of customized OEM/ODM fasteners. We sign mutual Non-Disclosure Agreements (NDA) prior to receiving proprietary 2D/3D drawings, safeguarding your intellectual property and mold tooling exclusively.

TECHNICAL INSIGHTS & INDUSTRY NEWS

Fastener Engineering Guides & Global Industry Updates

Authoritative metallurgical research, export standards, and smart fastener manufacturing insights directly from our engineering team.

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Peer-Reviewed Fastener Metallurgy
01 / 02
JIJIN
ISO 898-1 Class 10.9 Bolts Fatigue Failure Prevention
ISO 898-1 · Class 10.9
Nov 14, 20248 min read
Technical Whitepaper

How ISO 898-1 Class 10.9 Bolts Prevent Fatigue Failure in Wind Turbines & Mega Bridges

Continuous cold-drawn grain boundary alignment and microstructural tempering against hydrogen embrittlement under cyclic heavy shear stress in offshore towers.

ApexFast Metallurgy LabRead Article
JIJIN
EN 10204 3.1 Mill Test Certificate (MTR) Inspection Document Sheet
EN 10204 3.1 MTR
Oct 28, 20246 min read
Compliance & Quality

Deciphering EN 10204 3.1/Material Test Reports (MTR): Key Metrics & Heat Trace

Practical compliance guidance decoding spark spectrometry chemical composition, yield strength tolerances, elongation curves, and physical heat batch validation.

Quality Assurance DeskDownload PDF
JIJIN
Cold Heading Lines Expansion
Smart Manufacturing
Oct 15, 20245 min read
Smart Manufacturing

ApexFast Expands Multi-Station Cold Heading Lines to 10,000 MT Monthly

Commissioning 12 high-speed multi-station forming units and automated laser camera sorting cells to elevate international direct container export capacity.

Yongnian Plant UpdateRead Article
DIRECT MILL QUOTATION

Request Factory Pricing & Spec Sheet (RFQ)

Our technical export sales desk will calculate tiered FOB/CIF container pricing within 2 business hours.

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