M4 hexagon head set screws. M4 Fully Threaded Set Screws. A2 Stainless Steel Hexagon. Hexagon Head Fully Threaded. M4,M5,M6,M8 A2 Stainless Steel. M4, M5, M6, M8mm. A2 Stainless Stee l. Manufactured from A2 stainless steel for improved corrosion resistance.
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