M8 x 50 Hex Cap Screw for Mk5/6/7 Sigma 5 $3.00 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart M8-1.25 x 50mm Zinc Hex Cap Screw. It doesn't matter whether it is fully threaded or partially threaded. Grade 8.8 is OK.
