Import Din 127b Spring Washers — Buy in Bulk from Supplier in China

Din 127b spring washers from Liaocheng Hongyu Metal Co., Ltd. are helical spring washers designed to maintain tension in bolted joints under dynamic loads. They conform to the German DIN 127B standard with nominal diameters ranging from M3 to M60, matching standard metric screw sizes. The washers are manufactured with a split ring profile and a slight helical twist to provide axial spring force, preventing loosening from vibration. Surface finishes include zinc plated, hot dip galvanized, plain, and black oxide, as specified in the supplier's product listing.

These washers are typically made from medium carbon steel or spring steel, with material grades aligned to DIN 7980 or equivalent international standards. The hardness range is generally 38 to 48 HRC, consistent with industry norms for load-bearing spring washers. Surface treatments follow standard corrosion resistance practices: zinc plating offers basic protection, hot dip galvanizing provides thicker coating for outdoor use, and plain finish is used when subsequent painting or coating is planned. The supplier confirms compliance with DIN, GB, ISO, JIS, and ANSI standards, indicating broad compatibility across global engineering systems.

Din 127b washers are commonly used in construction, machinery, automotive assemblies, and civil engineering projects where vibration resistance is critical. Buyers include manufacturers of heavy equipment, structural steel fabricators, and maintenance contractors sourcing replacement fasteners. Packaging is typically 20 to 25 kilograms per pallet, packed in small boxes or bulk containers. Trade terms include T/T, L/C, and payment via CCPIT documents, with lead times generally aligned to production cycles and order volume. The supplier does not specify minimum order quantities, and buyers should confirm exact MOQ and lead time directly.

Liaocheng Hongyu Metal Co., Ltd. is a manufacturer and exporter of fasteners based in Shandong Province, China. The company specializes in a range of washers, including plain, spring, and square types, with product lines aligned to DIN, GB, and other international standards. The supplier’s profile indicates it operates as an imported tier vendor with harbor-level trust verification, suggesting established export experience. There is no public data on years in business, employee count, or revenue figures, and no certifications such as ISO 9001 are mentioned in the listing.

The supplier responds to inquiries with product specifications and pricing, but its response rate and average response time are recorded as zero, indicating potential delays or lack of active customer service. It does not claim any proprietary manufacturing processes, third-party certifications, or branded product lines. Its strength lies in volume production of standard fasteners and flexibility in surface finishes and packaging options. Buyers should treat this as a production-based supplier without verified quality management systems or client references.