30610457screw MC6S 10x50 12.9 untreated ISO47623
31610578screw MC6S 12x35 12.9 untreated ISO476212.9 Untreated ISO 47622
34610434screw MC6S 8x25 12.9 untreated ISO47624
57610451screw MC6S 10x20 12.9 untreated ISO47622pcs used on UNI and S45/S50 Top Brackets. 4pcs used on S40 Top brackets4