ISO 8751 Phosphate Parallel 4mm 28mm Spiral Dowel Elastic Cylindrical Pin

M4x28 Light duty spring pin ISO8751 elastic cylinder pin coiled spring pin spirol black phosphated roll pin coiled parallel pin cotter pin spiral pin dowel pin

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.

The pins are chamfered at both ends, so they can easily be inserted and installed automatically.

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.