M6x28 Standard duty spring pin ISO8750 elastic cylinder pin DIN7343 coiled spring pin spirol black phosphated roll pin coiled parallel pin ASME cotter pin spiral pin

Coiled pins are commercially available in three different duties, standard (ISO 8750), heavy (ISO 8748) and light duty (ISO 8751), which provide for a variety of combinations of strength, flexibility and diameter to suit different mating host materials and performance requirements.

Squeeze pins closed and install them in a hole slightly smaller than the pin. Tension holds them tight against the hole wall. The chamfered ends aid insertion.

The advantages are as follows. First, the design improves shock absorption as the load is spread over more than one coil. Second, assembly is easier as the insertion force needed is lower. Third, the pins cannot interlock when in bulk, which is a benefit when they are to be barrel plated or installed using bowl-fed equipment.

Standard duty coiled spring pins offer the best balance between flexibility and strength and are recommended for most applications.

Heavy duty coiled spring pins are typically used in high shear strength applications and hardened host materials.

Light duty pins are used in applications with soft metals and plastics holes where there is a high risk of enlarging or breaking the host using a traditional press fit solid pin.

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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.