Bolt Assembly, For Slot Width 8.2 mm, Steel, Zinc-Plated, Fastener Thread Size M6, Fastener Thread Length 14 mm, Hammer Nut, Flat Head Socket Cap, Threaded Hole Location Single Center, Drop-In, Metric, Compatible Brand and Series 80/20, 30 Series, Compatible Manufacturer Model Number 12108, 30 Series, Package Quantity 6 T-Slotted Extruded Aluminum Rail AccessoriesFor use in assembling machine guards and enclosures, workstations, displays, carts, shelving, and other fixtures.