Import Coil Screw — Buy in Bulk from Supplier in China

The coil screw is an industrial-grade carbon steel fastener engineered for heavy-duty applications in construction, woodworking, and manufacturing. It features a unique thread design that enhances grip and withdrawal resistance, ensuring a secure hold in both soft and hard materials. The screws are available with zinc-plated or black oxide finishes to improve corrosion resistance and meet aesthetic requirements for different environments.

Standard material composition is carbon steel, providing tensile strength typically ranging from 400 to 600 MPa for this grade, with thread profiles optimized for wood and metal substrates. Typical industry grades for such fasteners include ISO 7085 or DIN 7998 standards, while surface treatments often comply with ASTM B633 for zinc plating thickness. Variants may include coarse or fine thread pitches, with diameters commonly spanning M4 to M12 and lengths from 12 mm to 100 mm.

Primary buyers include furniture manufacturers, construction contractors, and automotive component suppliers who require bulk quantities with consistent performance. Trade terms for this listing include customizable MOQs and packaging, with compliance to ISO and SGS standards for quality assurance. Buyers should confirm specific dimensions, finishes, and certification status directly with the supplier to align with project specifications.

Shanghai Jialin Metals Products Co., Ltd. is based at No.120, Meixing Road, Yanghang Town, Shanghai, China. The company operates as a harbor-tier supplier, indicating a verified level of trade readiness and documentation for international shipments. Its product line focuses on industrial fasteners, with coil screws as a key offering for bulk buyers in construction and manufacturing sectors.

The supplier’s profile does not specify a response rate or average response time, which suggests buyers should proactively confirm lead times and technical details before placing orders. While the listing highlights compliance with ISO and SGS standards for its products, the supplier’s own certifications or production capacity are not explicitly stated and should be directly verified.