Engineering Machinery Hex Excavator Bolt And Tire Nut Black Phosphating
Our ISO 9001:2000-certified facilities implement strict quality control measures at multiple production stages. We provide detailed order-specific test reports including:
- Tensile strength and torque testing
- Salt spray testing for rust resistance
- Zinc plating thickness verification
As a leading fastener manufacturer in China, we maintain monthly production capacity of:
- 500+ tons of anchor bolts
- 1000+ tons of socket screws
We offer free samples within seven days and can fulfill orders within 1-2 months.
Our complete fastener product line includes:
- Various anchor types (Drop-in, Sleeve, Chemical, Wedge)
- Hex Socket Set Screws (DIN913/914/915/916-45H)
- Automotive Hub Bolts and Flange Head Cap Screws
- Specialty fasteners and hand tools
| Thread Size | 3/4 | 7/8 | 1 | 1-1/8 | M10 |
|---|---|---|---|---|---|
| PP | 10 | 9 | 8 | 7 | 1.5 |
| ds Min | 0.729 | 0.852 | 0.976 | 1.098 | 16 |
| ds Max | 0.768 | 0.895 | 1.022 | 1.149 | 15.73 |
| dk nominal | 1-9/32 | 1-31/64 | 2001/11/16 | 1-57/64 | 6 |
Standard delivery takes 10-20 days depending on quantity. Urgent orders can be accommodated upon request.
We are a manufacturer with over 20 years of production experience. Our trading subsidiary handles international operations.
Yes, samples are available with prepayment of sample and freight costs, refundable upon order placement.
All products undergo strict testing procedures and must pass 100% quality inspection before shipment.
- 24/7 customer support response (including holidays)
- Technical support available anytime
- Free replacements for confirmed quality issues
We accept T/T, D/A, D/P, L/C, O/A and other preferred payment methods before shipment.
WhatsApp: +375 (25) 660-12-83
WeChat: +86 13655959125 / 15860377809
Email: cai@nanfengmachinery.com
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.