Features Made of durable eco-friendly nylon PA66, which has the stable and long-lasting performance of acid resistance, alkali resistance, insulation and anti-signal interference With smooth surface, clean and clear thread, they look very beautiful, very practical and practical to use Four different sets are available to suit your building needs, including various male or female standoffs, nuts and bolts Ideal for mounting between PCBs and machine boards, is great for creating heat channels between chips or creating multi-story "nerd" arrangements of home-made PCBs When used properly, they don't slip easily Specification: Material: PA66 nylon Thread Type: M2, M3 Color: Black Package A BC D male to female spacer M3*6+6mm 25pcs M2*5+3mm 25 pieces M3*8+6mm 25pcs M2*6+3mm 25 pieces M3*10+6mm 25pcs M2*8+3mm 25 pieces M3*12+6mm 25pcs M2*10+3mm 25pcs M3*15+6mm 25pcs M2*12+3mm 25pcs M3*20+6mm 25pcs M2*15+3mm 25pcs Woman-woman control M3*6mm 25 pieces M2*5mm 25 pieces M3*8mm 25 pieces M2*6mm 25 pieces M3*10mm 25pcs M2*8mm 25 pieces M3*12mm 25pcs M2*10mm 25pcs M3*15mm 25pcs M2*12mm 25pcs M3*20mm 25pcs M2*15mm 25pcs screws M3*6mm 50 pieces M2*5mm 50 pieces M2*5mm 100 pieces nut M3 50 pieces M3*6mm 100 pieces M2 50 pieces Total250 pieces250 pieces250 pieces250 pieces Box size: A: 17.50 x 10.00 x 2.30 cm/6.89" x 3.94" x 0.91" B: 18.00 x 10.00 x 2.50 cm/7.09" x 3.94" x 0.98" C: 13.00 x 7.00 x 2.50 cm/5.12" x 2.76" x 0.98" D: 13.00 x 7.00 x 2.50 cm/5.12" x 2.76" x 0.98" (Optional) Package weight: approx. 46-101g Quantity: 250 pieces/box Included in delivery: 1 x Box of 250 Spacers M3*6mm 100 pieces Package List