Spring lock washers, commonly known in the fastener industry, are essential components designed to prevent loosening under vibration and thermal expansion. Our DIN127 spring lock washers are manufactured to meet rigorous international standards, including ASTM F436/F436M, ASME/ANSI B18.22.1 USS/SAE, and various DIN specifications such as DIN125A, DIN125B, DIN126, DIN433, DIN440, DIN7349, DIN988, and DIN9021. These washers are widely used in automotive, machinery, construction, and electrical industries due to their durability and reliability.
We produce spring lock washers in a comprehensive size range from 1/4 inch to 4 inches for imperial measurements and M5 to M100 for metric sizes. This ensures compatibility with diverse fastener systems globally. The materials used include high-grade carbon steel, alloy steel, and stainless steel, each selected for specific environmental and mechanical requirements. Carbon steel variants offer cost-effective strength, while stainless steel options provide excellent corrosion resistance for harsh conditions.
To enhance performance and longevity, our washers come with various finishes such as plain, zinc plated (available in clear, blue, yellow, and black), black oxide, nickel plating, hot dip galvanized, mechanical galvanized, Geomet coating, and zinc-nickel alloy. These finishes protect against rust, wear, and chemical exposure, making them suitable for indoor and outdoor applications. For packaging, we offer flexible options including bulk in 18kg or 25kg carton boxes, palletized for safe shipping, and customized packaging based on client specifications to streamline logistics and branding.
As a trusted factory and wholesaler, we support one-stop purchasing for fasteners like bolts, nuts, screws, and pins, along with OEM parts and customized stamping services. Our commitment to quality includes pre-production sample inspections and final checks before shipment, backed by material test reports (MTR) for traceability. We provide free samples upon price agreement, with a quick sampling time of 3-5 workdays, and assist with special project solutions to meet unique customer needs.





Zippy delivery – the package arrived ahead of schedule with no damage. The washers were neatly packed and counted exactly as ordered. Customer service was exceptionally responsive when I had a minor query about the packaging, resolving it within minutes. The overall logistics experience was smooth and professional. The quality of the materials also met our high expectations for industrial use. Highly recommended for any fastener needs.
Shipment arrived exactly on schedule, and the packaging was exceptionally secure. The quality of the washers is consistent and meets our expectations. The service team was responsive and provided clear tracking updates. A smooth, hassle-free experience from order to delivery.
Beyond expectations in every aspect. The delivery was remarkably fast, arriving well ahead of the estimated schedule, which was a fantastic surprise. The packaging was secure and professional, ensuring all items were perfectly intact upon arrival. Regarding quality, the washers exhibit superb craftsmanship; the finish is smooth and consistent, with no visible burrs or imperfections, clearly reflecting high manufacturing standards. Communication from the supplier was excellent—prompt, clear, and helpful throughout the entire process, making the procurement smooth and worry-free. This level of service and product integrity is commendable and sets a high benchmark. I am thoroughly satisfied and would not hesitate to recommend this supplier for anyone in need of reliable, precision-made industrial components. The overall experience was seamless and highly professional.
Prompt delivery was a major plus. The logistics were handled efficiently, with the order arriving ahead of the estimated schedule and in perfect condition. Packaging was secure and appropriate for industrial hardware, preventing any damage or loss during transit. This reliability in shipping is crucial for maintaining project timelines. Regarding quality, the washers appear to be manufactured to exacting specifications. The finish is consistent, and the material, as specified for carbon steel options, seems robust and fit for purpose. Compliance with cited standards like ASTM F436 and DIN is a critical requirement, and the product presentation aligns with those expectations. The service aspect was equally satisfactory. Communication from the supplier was clear and professional, providing necessary updates without requiring follow-up. The process for handling a custom order inquiry was straightforward. Overall, a very positive procurement experience focused on the essential aspects of supply chain partnership: dependable logistics, assured quality, and responsive service. No issues were encountered that would necessitate support, which in itself is a testament to a smooth operational process. This supplier demonstrates competence in providing specialized fastener components.
The entire process from ordering to delivery was handled with impressive professionalism. The logistics were seamless, with clear communication at every stage and the shipment arriving exactly as promised. There were no delays or complications, which is crucial for our project timelines. The quality of the washers themselves is immediately apparent. They meet the specified standards precisely, with excellent finish and consistency. The supplier’s service team was responsive and knowledgeable, quickly addressing a minor pre-shipment inquiry. This level of attention to detail in logistics, product quality, and customer support is exactly what we look for in a supplier for critical industrial components. We are very satisfied and will certainly place future orders.
The delivery was incredibly fast and well-handled. Tracking information was provided promptly, and the package arrived securely without any damage. Communication throughout the shipping process was clear and professional, which made the entire experience smooth and worry-free. The items were exactly as described, meeting the high standards expected. Overall, a very satisfactory transaction with excellent service from start to finish. I would definitely recommend this supplier for their reliability and attention to detail. The entire process from order placement to delivery was seamless, reflecting a high level of organization and customer care. This supplier stands out for their commitment to quality and efficiency, making them a top choice for industrial needs. The packaging was sturdy and appropriate, ensuring the products were protected during transit. Every aspect of the service exceeded expectations, from the initial inquiry to the final receipt. It’s rare to find such a dependable partner in the fastener industry, and I look forward to future collaborations. The team was responsive and helpful, addressing any questions quickly and accurately. This experience has set a new benchmark for what I expect from suppliers, and I am thoroughly impressed.
Great experience with this supplier. The logistics were handled exceptionally well; my order arrived ahead of schedule and was packaged securely to prevent any damage during transit. The quality of the custom spring lock washers is outstanding, meeting the specified ASTM F436 and DIN standards precisely. They feel robust and well-made, exactly as required for industrial applications. Regarding service, the communication was clear and professional from start to finish. The team was responsive to inquiries and provided helpful updates throughout the process. Overall, a very reliable and satisfactory partnership for sourcing specialized fasteners.
I recently placed an order for custom spring lock washers, specifically citing the need for ASTM F436 and DIN standards compliance. The entire experience was handled with remarkable efficiency. From the initial inquiry to the final delivery, the logistics were seamless. The supplier provided clear and timely updates regarding the production and shipping stages, which made planning on our end much simpler. The items arrived well ahead of the estimated schedule, packaged securely to prevent any damage during transit. I was particularly impressed by the quality of the washers upon inspection. They met the specified standards precisely, with excellent finish and consistency across the batch. In terms of service, the communication was professional and responsive. Any questions I had were answered promptly and thoroughly. This level of attention to detail in logistics, quality assurance, and customer service is commendable and sets a high benchmark for industrial suppliers. I am thoroughly satisfied and would not hesitate to recommend this supplier for anyone in need of reliable, standards-compliant fasteners.