The Kyosho 1-S13028H is an RC button head screw specified at M3x28 with a hex drive, supplied in a 5-piece pack for KC10 chassis applications. It functions as a direct replacement where a low-profile head and M3 threaded shaft are required for chassis assembly.
Installation is straightforward but check seating depth and avoid over-torquing to protect plastic inserts or alloy mounts. Confirm the replacement screw's overall length against the original fastener before final tightening to prevent interference with adjacent components.
Do not infer fitment beyond the KC10 chassis group, and avoid replacing specialised fasteners when thread type or material specification is critical to the assembly.
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