M4 M5 M6 M8 A2 BLACK STAINLESS HEX SOCKET FLANGED BUTTON HEAD ALLEN BOLT SCREWS
BOLT: Black Stainless Steel M4 M5 M6 M8 Flanged Socket Button (ISO 7380F ). FLANGE SOCKET BUTTON BOLT LENGTHS: 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm, 60mm. THREAD PITCH STEEL: A2-70 Black Stainless Steel.