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: 25mm / 0.98-inchHex Side Width: 6.8mm / 0.27-inchThread Size: M4Total Length: 31mm / 1.22-inchNet Weight: 104gMaterial: BrassColor: Gold TonePackage Content: 20pcs x Hex Standoff Spacer