Custom Screws – Tailored Fasteners for Global Industrial Buyers
Precision. Speed. Trust. From China’s leading foundry.
If you are sourcing custom screws for industrial assemblies, fencing, or automotive applications, you need a partner who combines precision casting with fast, flexible production. Shijiazhuang TJJ TRADE CO.,LTD. operates a 100,000+ sqft foundry with over 20 years of experience, delivering OEM/ODM screws in stainless steel, carbon steel, brass, and more. Our typical MOQ starts at 5,000 pieces and lead times as low as 15 days. We serve import managers, brand owners, and wholesalers across the USA, Europe, and South America. Need a custom screw solution? We deliver.
Why Standard Screws Fail – And How Custom Casting Solves It
For import managers and sourcing agents, relying on off-the-shelf fasteners often leads to:
- Dimension mismatches – standard lengths/diameters don’t fit your specific assembly.
- Weak thread strength – mass‑produced screws may fail under higher torque.
- Surface degradation – inadequate corrosion protection for outdoor or marine use.
- Long lead times & large MOQs – suppliers demand minimums of 50,000 units.
💡 Pain point → Solution: TJJ’s custom screw manufacturing doesn't just match standard specs – it optimizes thread pitch, head style, material hardness, and coating to your exact application, with MOQ as low as 5,000 pieces and prototypes in 7–10 working days.
Our Custom Screw Capabilities – Data That Speaks
Materials & Coatings
| Material | Grades | Common Applications |
|---|---|---|
| Stainless Steel | 304, 316, 410 | Marine, outdoor, food processing |
| Carbon Steel | 1018, 1045, 12L14 | Construction, automotive, general assembly |
| Brass / Bronze | C36000, C46400 | Electrical, decorative, corrosion‑resistant |
| Copper | C110, C101 | Electrical grounding, plumbing |
| Coatings & Plating | Standard/Compliance | Salt Spray (hours) |
|---|---|---|
| Zinc Plating (clear, blue, yellow) | ASTM B633 | 72 – 120 |
| Hot‑Dip Galvanizing | ASTM A153 | 500+ |
| Black Oxide | MIL‑DTL‑13924 | 24 – 48 |
| Dacromet / Geomet | ISO 10683 | 1000+ |
Screw Design & Customization Options
- Head types: Phillips, Torx, Hex, Square, Pan, Flat, Round, Hex Washer, or custom designs.
- Thread forms: UNC, UNF, Metric (M), BA, or custom profile.
- Length & diameter: Ø2 mm–Ø20 mm, length 4 mm–200 mm (larger sizes on request).
- Drive recess: Any recess depth or combination.
- Point styles: Self‑tapping, self‑drilling, blunt, dog point.
- Marking: Custom logos, grade marks, or part numbers.
Comparison: Standard vs. TJJ Custom Screws
| Parameter | Standard Imported Screws | TJJ Custom‑Made Screws |
|---|---|---|
| MOQ | 50,000 – 100,000 pcs | 5,000 pcs (prototype: 500) |
| Lead Time | 30–60 days | 15–25 days (depending on volume) |
| Material Flexibility | Limited to stock grades | Any castable alloy, plus heat treating |
| Tolerance | ±0.1 mm (typical) | ±0.05 mm (ISO 2768‑m) |
| Quality Control | Random sampling | 100% inspection on critical dimensions + torque testing |
* All technical parameters are for reference. Actual specifications depend on order confirmation.
Why TJJ? Trust Built Over 20 Years
- 20+ years of foundry and export experience – one of the first casting factories in China.
- 200+ skilled workers and a dedicated engineering team for OEM/ODM development.
- Facility area: over 10,000 m² (108,000 sqft) with in‑house pattern shop, casting lines, CNC machining, and surface treatment.
- Export to 30+ countries, including the USA, Canada, UK, Australia, and throughout Europe/South America.
- Compliance: Our quality management system aligns with ISO 9001:2015 (certification available upon request). All products comply with relevant ASTM, DIN, and JIS standards.
What Our Buyers Say About Our Custom Screws
Sourcing Manager, Mid‑West Industrial Supply (USA)
“We switched from a local fastener supplier to TJJ for our custom 316 stainless screws used in waste‑water treatment. The quality consistency is remarkable – torque values are within ±2% across batches. Lead times cut by 40%.”
Brand Owner, Linwood Hardware Designs (UK)
“I needed a decorative brass screw with a custom hexalobular drive for our premium door hardware line. TJJ took my sketch, supplied samples in 10 days, and the production batch arrived perfectly on spec. Excellent communication.”
Wholesale Director, Cortés Distribuidores (Colombia)
“We import thousands of screws every month for the construction market. TJJ’s MOQ flexibility allowed us to test with 5,000 pieces, and now we order 50,000+ regularly. The zinc plating uniformity is better than any previous supplier.”
Senior Buyer, Altenberg Machinery (Germany)
“We required a special high‑strength screw for our agricultural equipment – made from 1045 steel, heat‑treated to HRC 38‑42. TJJ not only matched the spec but delivered a full PPAP package. They understand ISO / DIN standards deeply.”
Written by
David Chen – Senior Manufacturing Engineer, TJJ Foundry
With 14 years in precision casting and custom fastener production, David oversees technical development and quality assurance for international OEM/ODM projects. He has helped over 80 clients optimize their screw designs for cost and performance.
Commercial Terms – Transparency for Sourcing Decisions
| MOQ | Standard custom screws: 5,000 pieces per item. Prototype samples: 200–500 pieces (cost and time vary). For large‑volume orders (100,000+) we offer tiered pricing. |
| Lead Time | Sample: 7–10 working days (after design confirmation). Production: 15–25 working days (depending on quantity and surface treatment). Urgent orders possible – please inquire. |
| OEM / ODM Support | Yes. We accept custom designs (drawings, samples, or sketches). In‑house engineering team will provide DFM feedback. Confidentiality agreements available. |
| Packaging | Standard export cartons + pallets, or custom packaging (retail‑ready bags, inner boxes, bulk packs). Barcode labeling, customer logo on packages – no extra charge for simple modifications. |
| Logistics | We work with multiple freight forwarders. Options: FOB Shanghai / Tianjin, CIF to your nearest port, or DDP (door‑to‑door) for orders above $5,000. Air freight available. |
| After‑Sales & Warranty | 100% responsibility for any manufacturing defects. We provide free replacement or credit for non‑conforming items. Dedicated account manager for continuous support. |
| Payment Terms | T/T (30% deposit, 70% before shipment), L/C at sight, or negotiable for established partners. |
custom machine screws custom bolts machine screw:
* All commercial terms are subject to final order confirmation. Contact us for a detailed quotation.
Custom Screws in Action – Real‑World Applications
🏭 Ornamental Iron & Fencing
Our screws are used to secure balusters, panels, and post caps. We offer matching finishes (black, bronze, galvanized) to blend with wrought‑iron aesthetics. Typical order: 30,000 hex‑head screws for a large residential project in Texas.
🚗 Automotive Assembly
Custom shoulder screws and self‑tapping fasteners for brackets and interior trims. We supply to Tier 2 suppliers in the Midwest with lot‑traceability and SPC data.
🌊 Marine & Offshore
316 stainless steel screws with extra passivation for coastal environments. One Australian client orders 10,000 pcs/month for boat deck fittings. Salt spray test passes 500 hours.
Ready to Source Your Custom Screws?
Send your enquiry today – we respond within 4 business hours. Quick quote for standard custom designs.
Contact Us:
Tel / WhatsApp: +86-15511680668
Email: sindyhao2014@163.com
📩 Request a Quote
Shijiazhuang TJJ TRADE CO.,LTD. – Your Custom Fastener Partner
All product data, capacities, and lead times are approximate and subject to order confirmation. Certifications and customer references are available on request. This content is for informational purposes and does not constitute a binding offer.
