M4 (4mmØ) FLANGED BUTTON HEAD SCREWS ALLEN KEY SOCKET BOLTS A2 STAINLESS STEEL
M4 Flanged Button Head Screws. A2 Stainless Steel. Manufactured from A2 grade stainless steel for improved corrosion resistance. Allen key size; 2.5mm. All the screws are fully threaded. Screw lengths do not include the head.