About Us
Company Introduction
NINGBO SHENGTAI FASTENER TECHNOLOGY CO., LTD (TARIC CODE C821), established in 2008, serves as the wholly-owned parent company of Ningbo SUNLONG IMP & EXP CO., LTD. As a leading manufacturer in the fastener industry, it operates a 12,000㎡ facility with 60 skilled employees (including 20 R&D engineers) and over 100 precision machines, producing 10,000 MT annual capacity of high-strength, corrosion-resistant screws (M3-M12, 5-500mm) for global industrial applications.
Factory complex in Cixi City, Zhejiang Province
Factory site in Suqian City, Jiangsu Province
Why Choose Us
Committed to providing customers with "high-strength, corrosion-resistant" screw production, research and development, and customized solutions
Our Customers
Sophisticated Equipment
Frequently Asked Questions (FAQ)
A: We offer screws in stainless steel, carbon steel, alloy steel, brass, etc., compliant with ISO, DIN, ANSI, JIS, and ASTM standards. Material certifications are available upon request.
A: Options include zinc plating, ruspert, zinc-nickel alloy, Dacromet, phosphate, and nickel plating. Our treatments pass 500–1500+ hours of salt spray testing (depending on requirements).
A: Free samples are available (customer covers shipping).
MOQ starts at 1,000 pcs** (negotiable for long-term orders).
A: We implement dimensional checks, hardness/tensile tests, torque tests and hold ISO 9001 and RoHS/REACH certifications.
A: Yes, we supply mill certificate with shipments.
A: Standard quotes are FOB Ningbo; CIF/DAP terms available. Discounts apply for large or recurring orders.
A: T/T, L/C, or PayPal/Wise for small orders.
A: Standard: 30 - 50 days. Rush orders accepted with a surcharge.
A: Yes! Submit your drawings/samples → we evaluate → provide DFM feedback → approve samples → mass production.
A: Tooling fees are one-time but 100% refundable after reaching agreed order quantities.
A: We offer 6 month warranty. Defective items are replaced/refunded.
A: Custom packaging (boxes, reels, pallets) with barcodes, logos, or OEM labels is available.