M8x22 Heavy Duty Spring Pin ISO8748 Elastic Cylinder Pin DIN7344 Coiled Spring Pin Spirol Black Phosphated Roll Pin Coil

M8x22 Heavy duty spring pin ISO8748 elastic cylinder pin DIN7344 coiled spring pin spirol black phosphated roll pin coiled parallel pin ASME cotter pin spiral pinused 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.

Spring pins may be used to retain a shaft as a journal in a plain bearing, as a type of key to fasten one shaft to another, or to precisely fasten flat faces of mating parts together through symmetric hole locations.

These pins are used for connections or the positioning of two or more parts and may also be used as shafts and hinge-, stop- or carrierpins, and are easily disassembled.

Thanks to their spiral shaped cross section (approximately 2.1/4 coils) these pins are very flexible and suitable for repeated use with dynamic loads. Equal stress distribution throughout their cross section against the hole wall produces a good press fit, which can absorb shear forces unaffected by the direction.

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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.