Bolt Assembly For Slot Width 10.2 mm Steel Zinc-Plated Fastener Thread Size M8 Fastener Thread Length 18 mm Hammer Nut Button Head Socket Cap Threaded Hole Location Single Center Drop-In Metric Compatible Brand and Series 80/20 45 Series Compatible Manufacturer Model Number 45-4306 45-4340 45-4351 45 Series Package Quantity 6