Bolt Assembly, For Slot Width 0.4 in, Steel, Zinc-Plated, Fastener Thread Size 5/16 In. -18, Fastener Thread Length 7/8 in, T-Nut, Socket Head Cap, Threaded Hole Location Single Offset, Slide-In, Inch, Compatible Brand and Series 80/20, 15 Series, Compatible Manufacturer Model Number 2130, 15 Series, Package Quantity 15