M8-1.25 x 50mm ISO 4762/DIN 912 Hex Drive A4-70 Stainless Steel Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 50.0 MILLIMETERS NOMINAL HEAD STYLE: C48 FLAT FILLISTER INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: ACOUSTIC TRAC NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS WIDTH ACROSS FLATS: 6.0 MILLIMETERS NOMINAL THREAD PITCH IN MILLIMETERS: 1.25 MATERIAL: STEEL CORROSION RESISTING OVERALL THREAD SERIES DESIGNATOR: ISO M