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: 4mm / 0.16-inchFemale Thread Length: 6mm / 0.24-inchHex Side Width: 5.2mm / 0.2-inchThread Size: M3Total Length: 10mm / 0.39-inchNet Weight: 40gMaterial: BrassColor: Gold TonePackage Content: 46pcs x Hex Standoff Spacer