uxcell 20 Sets 6mm Phillips Socket Countersunk Head Cap Screw Bolts Dowel Nuts Product Name : BarrelNuts +Countersunk Bolts;Head Type : Phillips Head BarrelNutSize : Thread Size: 6 x11mm/0.24" x 0.43" (D*L)Total Size: 15 x 13mm/ 0.6" x 0.5" (L*D)Fit Hex Key Size: 3.5mm - 5.5mm;Countersunk BoltSize : Thread Size: 6 x 25mm/0.24" x 1" (D*L)Total Size: 27x 12mm / 1.1" x 0.5" (L*D)Fit Hex Key Size: 3.5mm - 6mm Material : Metal;Color : Silver Tone Total Weight : 202g Package Content : 20x BarrelNut20 x Countersunk Bolts