Order: 221285 Hexagon socket screws DIN 912 M48x160-10.9 black oxide 100% crack-tested with certificate WAZ 3.1 500 pcs. (partial delivery possible) Order: 221690 Hexagon socket screws DIN 912 M48x180-10.9 black oxide 100% crack-tested with certificate WAZ 3.1 200 pcs. (partial delivery possible)