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R-Clip (Hairpin Cotter)

R-clips are spring-type retaining fasteners designed for quick and tool-free installation. Their hairpin-shaped structure provides elastic tension, allowing the clip to snap securely into shaft holes or cross-pins with minimal effort.

They are reusable, easy to install, and ideal for applications that require frequent assembly and disassembly.

Commonly used in agricultural machinery, jigs, material handling equipment, and also popular in DIY projects and outdoor gear.

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R 型銷（平頭款），碳鋼鍍鋅材質，具彈性髮夾結構，適用於快速插拔與零件定位，常見於農機與戶外機械
R 型銷（平頭款），不鏽鋼 SUS304 材質，具耐腐蝕性與彈性固定功能，適用於自動化設備與精密零件防鬆用途

Product Features

  • Spring-leg design with one curved side provides self-locking grip on shafts

  • Easy installation: insert the short leg into the pin hole, and the long leg snaps into place naturally

  • Reusable and easy to remove, helping reduce assembly and maintenance time

  • Size range: suitable for shaft diameters from Ø1.5mm to Ø10mm (custom sizes available)

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Material & Surface Treatment

  • Steel (SWRCH / Low Carbon Steel)

  • Good toughness and cost-effectiveness

  • Surface treatment: trivalent zinc plating for corrosion resistance

  • SUS304 (Stainless Steel)

  • Excellent rust resistance and clean finish

  • Ideal for food-grade equipment, outdoor use, and electronic devices

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Applications

  • Detachable joints in agricultural machinery

  • Quick-locking components for carts and work fixtures

  • Temporary shaft or pin retention for hinged assemblies

  • Practical snap-lock fastener for bicycles, camping gear, and outdoor tools

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Customization & Notes

  • Compatible with through-hole or blind-hole designs

  • Low-volume orders and part number matching supported

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Reference Standards

  • DIN 11024 (Germany)

  • ANSI/ASME B18.8.1 (United States)

  • GB/T 893.3 (China)

  • CNS – Common Elastic Pin Design Manual (Taiwan)

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