ISO 9001:2015 Certified CE & RoHS Compliant MTC With Every Order 20 Years · 30+ Countries · 8,000 Tons/Year 💳 PayPal Accepted
Made in China · Global Supply Since 2005

Industrial Fasteners
Manufactured to Spec.
Delivered on Time.

ZhongKe Fastener is your direct factory source for bolts, nuts, screws, washers, rivets, and pins. ISO 9001 certified. 5,000+ specifications. Full MTCs. Serving distributors and OEMs in 30+ countries.

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Hex Bolts

Grade 8.8 – 12.9

Lock Nuts

DIN 985 / ISO 7040

Screws

Self-Tap & Machine

Custom Parts

Made to Drawing

Product Range

6 categories · 5,000+ specs · GB / DIN / ISO / ANSI / BS / JIS

Bolts

Hex · Flange · Carriage · U-Bolt

Nuts

Hex · Lock · Flange · Cap

Screws

Self-Tap · Machine · Wood

Washers

Flat · Spring · Lock

Rivets

Blind · Solid · Drive

Pins & Keys

Dowel · Cotter · Parallel Key

Studs & Rods

Threaded Rod · Double-End

Kits & Sets

Assortment · Combo · DIY

Bolts — Popular Specifications

12 Products
ProductSizeMaterial / GradeStandardFinish

Industries We Serve

Fasteners engineered for every application

Automotive

Grade 8.8–12.9 fasteners for engines, chassis, and assemblies. PPAP documentation. Zero-defect programs.

Construction

Anchor bolts, heavy hex structural bolts, HDG finish. Bulk supply for steel erection and concrete.

Machinery

Socket head cap screws, dowel pins, set screws. Precision tolerances for rotating equipment.

Electrical

Small screws, brass nuts, terminals. RoHS compliant. High conductivity materials.

Marine & Offshore

SS316 / A4 bolts and nuts. Hot-dip galvanized. Salt spray tested to 1,000+ hours.

Custom / OEM

Non-standard dimensions, special materials, custom plating. Send us your drawing — we make it.

Why Work With ZhongKe

Everything you need from a manufacturing partner

15,000 m² Facility

Cold heading, CNC turning, stamping, heat treatment — all under one roof. No subcontracting.

Full In-House Testing

Spectrometer, tensile, hardness, salt spray, torque — all on-site. MTC with every shipment.

Stock & Fast Ship

Common sizes in inventory. Standard parts ship in 5-7 days. Small trial orders welcome.

Engineer-to-Engineer

Our technical team helps with material selection, coating specs, and failure analysis. No sales fluff.

Our Warehouse & Facility

15,000 m² facility — ready stock, fast dispatch

ZhongKe warehouse inventory
ZhongKe warehouse shelves
ZhongKe warehouse stock

How to Order

Three steps — from browsing to delivery

1

Browse & Add

Browse 100+ products across 8 categories. Click "+ Add to Quote" on anything you're interested in.

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2

Pay or Request Quote

Pay instantly with PayPal for standard products. Or submit a quote request — we reply within 24 hours.

3

We Ship. You Receive.

Common sizes ship within 48 hours. Bulk orders in 7-15 days. Tracking number provided — worldwide delivery.

Start Browsing Products

Technical Resources

Data sheets, CAD files, and reference guides for engineers and buyers

Product Catalog PDF

Complete 60+ product range with specs, materials, and finish options. 19 pages.

PDF · 616 KB

Material Grade Reference

Carbon steel, alloy, stainless — tensile, yield, hardness comparison. Quick selection guide.

View on site

Certificate of Compliance

ISO 9001, CE, RoHS, REACH — all certifications available for download upon request.

Available on request

Request CAD / STEP Files

Need 3D models? Send us the product codes. STEP, IGES, SolidWorks formats available.

Request →

Frequently Asked Questions

What buyers typically ask before their first order

Standard parts: 500–1,000 pcs per size. Custom parts: 200–500 pcs. We're flexible on trial orders — contact us with your requirements.

Yes — free samples of standard products (you cover shipping). For custom parts, tooling fee applies, refundable on first production order.

ISO 9001:2015. Material Test Certificates (MTC / mill certs) with every order. PPAP Level 2, SGS/TUV/BV third-party inspection available on request.

Standard parts: 5–7 working days. Custom parts: 15–25 working days. Sea freight: 25–40 days. Air freight: 5–8 days. Express (DHL): 3–5 days.

Absolutely. Send PDF / DWG / STEP. Our engineers review within 24 hours. NDA available on request. Non-standard sizes, special threads, custom heads — all possible.

Email tluo7909@gmail.com with product name, size, material/grade, finish, and quantity. We'll reply with pricing, lead time, and shipping options within 24 hours.

ISO 9001:2015

CE Certified

ANSI/ASTM

DIN Standard

BS Standard

JIS Standard

RoHS / REACH

Get in Touch

Quote within 24 hours. Samples within 7 days.

Call Us

+86 138-0722-1298

Mon–Sat, 8AM–6PM (GMT+8)

Email

tluo7909@gmail.com

Technical: tluo7909@gmail.com

Factory Address

No.18 Kaizhuang, Qindong Town, Dongtai City, Jiangsu, China

Factory visits welcome — please schedule in advance

Contact Person

Tailuo — Sales Manager

WeChat / WhatsApp: +86 138-0722-1298

Send an Inquiry

We'll reply with pricing and lead time within 24 hours