Kyosho 1-S54004 M4x4 set screws are designed for compact, accurate fastening in RC assemblies. Supplied as ten pieces, this kit is convenient for workshop projects and part replacements where space and fit matter.
Because the M4x4 size is frequently used across components, these screws are a practical choice for securing small brackets, electronics mounts, and moving linkages. They deliver a secure connection without the weight or size of larger fasteners.
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