Precision Fasteners & Custom CNC Components
Dowel Pins, Keys, Retaining Rings, Screws
JIS B 2804
(Japan Standard)
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Diameter Range: Ø5mm – Ø300mm
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Materials: S50C (medium carbon steel), SUS304, SUS420
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Highlights: Commonly used across Asia, available in ready stock
RTW Internal Circlips (R-Type Retaining Rings)
R-Type Circlips are internal retaining rings designed to fit into grooves inside bores. They prevent axial movement or loosening of components such as bearings and washers. Featuring a double-lug design, these circlips can be installed and removed quickly using internal circlip pliers—ideal for compact assemblies and space-constrained applications.
This product line is available in compliance with three major international standards, supporting a wide range of global machinery:
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JIS B 2804 (Japan Standard): Widely used in Asia. Offers high dimensional stability and broad size coverage from Ø5mm to Ø300mm.
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DIN 472 (German Standard): Common in European machinery, suitable for export equipment and heavy-duty applications.
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5100 Series (U.S. Standard): Designed for North American or imperial-based systems. Offers structural differences for enhanced load capacity and precision engagement.
DIN 472
(German Standard)
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Diameter Range: Ø5mm – Ø300mm
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Materials: S50C (medium carbon steel), SUS420
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Highlights: Designed for heavy-duty shafts and European machinery
5100 Series
(U.S. Standard)
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Diameter Range: 0.125” – 10”
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Materials: S50C (medium carbon steel), SUS420
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Highlights: Ideal for American equipment and imperial-size systems
Applications
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Shaft positioning in industrial machinery
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Thrust washer retention in motors and electric devices
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Fastening components in automated assembly systems
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Anti-loosening mechanisms in automotive parts
Customization & Notes
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Available in small quantities; part number verification and custom tooling supported
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Please confirm with your equipment standard before ordering, as DIN 472 and JIS B 2804 have slight dimensional differences
R-Clip Installation Tool｜
External Circlip Pliers for Quick Pin Retention
This tool is specially designed for R-Clips (also known as Hairpin Cotters), widely used for quick positioning and disassembly in applications such as agricultural machinery, shaft locking, and equipment fixtures.
It helps enhance assembly efficiency while reducing hand strain during operation.
🔧 Two common handle types:
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Straight Handle: Best for perpendicular insertion and steady force application.
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Bent Handle: Allows flexible access from different angles, ideal for tight or limited assembly spaces.
Sheng Fong’s R-Clip tools are available in various sizes and styles, designed to be lightweight, ergonomic, and easy to operate. Perfect for both field repairs and repetitive installations.