M4x40 spring steel stainless steel Heavy duty slotted spring pin elastic cylinder pin ISO8752 spring lock pin roll pin DIN1481 expansion pin coiled spring pin cotter pin dowel pin clamping pin used in machinery railway aviation automotive industry agriculture tools furniture mining plastic

A spring pin (also called tension pin or roll pin) is a mechanical fastener that secures the position of two or more parts of a machine relative to each other. Spring pins have a body diameter which is larger than the hole diameter, and a chamfer on either one or both ends to facilitate starting the pin into the hole. The spring action of the pin allows it to compress as it assumes the diameter of the hole. The force exerted by the pin against the hole wall retains it in the hole, therefore a spring pin is considered a self retaining fastener.

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FAQ

Q: Are you trading company or manufacturer?

A: We are factory.

Q: What is your payment method?
A: T/T. For small order less than 1000USD, 100% in advance to reduce the bank charges. For order more than 1000USD, 30% in advance and balance before shipment.

Q: Can you provide a sample?
A: Yes, our sample is provided free of charge, but not including the cost of freight.

Q: What's your delivery time?
A: Generally 15 days if the goods are in stock. If not in stock we’ll need 30 working days to produce. It depends on quantity.

Q: How to Custom-made?
A: If you have a new product drawing or a sample, please send to us, and we can custom-made for you. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Q: Which mode of transport would be better?
A: In general, we advice to make delivery by sea. Also we respect your views of other transportation as well.

Anhui Paiensi Metallic Products Co., Ltd, located in the scenic east of Anhui Province, was founded in 2011, with staff of more than 50 people, independent design team and technological research and development force. The register capital is one million. With several years' development, Paiensi now becomes the domestic professional manufacturer of elastic cylindrical pins, spring washers, positioning bushings and spring rolled parts. Paiensi made the maximun efforts to provide customers with satisfactory experience, thus becoming a high-quality supplier of the market. Paiensi is proud of being a solution provider, aiming at reducing costs and improving performance, working with customers to develop business and technology solutions. Paiensi solves problems through focusing on the highest quality, the best service, persistent innovation and the master craftsman spirit. Paiensi integrates R&D, production and sales. The products are sold at home and abroad.