M8 * 50 mm Hex Set Screw A4 grade Stainless steel Thread pitch: 1.25 mm e: point to point : 14.38 mm (max) K: head thickness : 5.4 mm (max) S: Across flats : 13 mm l: thread length : 50 mm A4 grade stainless steel has a greater corrosion resistance than A2 in certain environments. It is often used for Marine applications especially when coming into direct contact with salt water DIN933
