Uxcell a15080400ux0741#4-40 6mm Female Thread Brass Hex Nut Spacer Standoff Pillar (Pack of 100) Thread Size: 0.09"(2.385mm); Product Name: Hex Nut Spacer Material: Brass; Weight: 65g Package Content: 100pcs(+/-2%) x Hex Nut Spacer; Main Color: Silver Tone Height: 0.236"(6mm); Hex Size: 0.185"(4.7mm) Thread Pitch: 40/inch(0.635mm)