'Castle Nut, Nut Style Round Slotted Nut, Basic Material Steel, Material Grade Grade 5, Fastener Finish Plain, Fastener Thread Direction Right Hand, Dia./Thread Size 5/8 In.-11, Fastener Thread Type UNC, Width Across Flats 15/16 In., Nut Height 35/64 In., Pin Dia. 5/32 In., Slot Width 0.24 In., Slot Depth 0.34 In., Nut Standards ASME B18.2.2, Package Quantity 25'