The differences in details have a significant impact: How do the C surface and R surface affect installation efficiency and lifespan?
Assembly troubles with positioning pins are largely due to the geometry of the ends. Choosing the appropriate chamfer (C face) or radius (R face) can make a significant difference in assembly efficiency and component lifespan.
C face (Chamfer): Excellent for guiding initial contact and correcting position, it allows for smooth guidance. It reduces seizing and deformation, and minimizes positional misalignment during press-fitting. It pairs well with ANSI standard hardened steel, making it ideal for high-precision press fits and improving stability in automated lines.
R face (Radius): The curved surface disperses stress, reducing the risk of damage to hole walls and fatigue cracks. It is suitable for ISO/DIN standard non-hardened stainless steel, and is ideal for slip fits, frequent assembly and disassembly, and use with soft materials like aluminum and plastics. It ensures durability and stability even with long-term use.
Selection summary: For efficiency, choose C face; for durability, choose R face; for critical structural components or high-precision equipment, a combined design of C + R is appropriate.

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There are many types: the products are mainly classified into straight type, air groove threaded type, threaded type, stepped type, and stepped screw type.
Various materials: bearing steel (SUJ2), stainless steel SUS440C, stainless steel SUS304.
We support small quantities and a wide variety, and customization according to customer needs is also possible, with no restrictions on quantity.




