Description:Brass material, male female type threaded, and it is perfect for mounting between PCB circuit boards and machine boards.specifications:Product Name: Hex Standoff SpacerMale Thread Length: 6mm / 0.24-inchFemale Thread Length: 12mm / 0.47-inchHex Side Width: 5.2mm / 0.2-inchThread Size: M3Total Length: 18mm / 0.71-inchNet Weight: 48gMaterial: BrassColor: Gold TonePackage Content: 30pcs x Hex Standoff Spacer