First, drill a hole with a diameter 0.5mm larger than 5/16" (8mm) for the barrel nut.
Place the screw and barrel nut on opposite sides of the object, then tighten the bolt and nut with a 4mm wrench.
Specifications:
Thread Size: M6
Screw Length: 10mm/0.39"
Barrel Nut Length: 15mm/0.59"
Barrel Nut Diameter: 8mm/0.31"
Screw Head Diameter: 12.8mm/0.5"
Hex Drive Size: 4mm/0.16"
Material: Carbon Steel
Surface Treatment: Galvanized
Package Contents:
10 pieces x M6x10mm Bolts
10 pieces x M6x15mm Barrel Nuts
1 piece x 4mm Hex Wrench