2-20sets M5 M6 M8 M10 M12 304 stainless-steel T-shaped screw groove bolt T-shaped pressure plate screw flange nut set GB37 Product Description: Product Name: T-bolt set (Bolt +Nut) Material: 304 chrome steel Size: M5 M6 M8 M10 M12 Bolts Length: 12mm-50mm (Excluding head length) Quantity: 2/4/5/10/20sets