Kit 120pcs M3 spacers various sizes High quality brass stencil kit. Wide variety of sizes to have everything you need. Model: M3 male-female brass, nuts Material: brass and stainless steel. Kit contents M3 brass male-female standoff (6mm + 6mm), 10pcs M3 brass male-female standoff (10mm + 6mm), 10pcs M3 brass male-female standoff (15mm + 6mm), 10pcs M3 brass male-female standoff (20mm + 6mm), 10pcs M3 brass female-female standoff (6mm) 10pcs M3 brass female-female standoff (10mm) 10pcs M3 brass female-female standoff (15mm) 10pcs M3 brass female-female standoff (20mm) 10pcs M3 stainless steel screws (M3 x 6mm), 20 pieces. M3 stainless steel nuts, 20 pieces.