Check the listing for details. M30x2mm Hexagon Slotted Nut Black. Condition: New. Listed at 13.99 USD. Hex Slotted NutsGeneral Information：[1][Usage] - Commonly used in industry to secure front wheel bearings or hubs to main shafts on trucks. Suitable for some repair and maintenance in the mechanical industry, shops, garages, household furniture fasteners, etc.[2][SIZE] - 1.77" (45mm) width across flat, 1.22" (31mm) height, 0.83" (21mm) full thread height, Grade: 4.8[3][Material] - Made of carbon steel with a blackened surface finish, this hex slotted nut is of high hardness, not easy to rust, deform, wear-resistant and anti-corrosion[4][Function] - The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. Fitting for a 6.3x63mm cotter pin[5][Threaded] - Thread Size: M30; Thread Pitch: 2mm / 0.08"; Slot Width: 7mm / 0.28".