445/650/850/1300pcs/set M2 M2.5 M3 M4 PCB Motherboard Black Plastic Nylon Hex Hexagon Spacer Column Standoff Screw Nut Kit Box

Items Description

Material

nylon

- M2.5 850pcs

- M3 650pcs

- M4 445pcs

Usually the screw will be look smaller, If you use the original rule to measure the screw, maybe it will have error, it will be look smaller. The correct way to measure the screw is by Vernier caliper.

Most people think the stainless steel can't be attracted by a magnet. But the stainless steel has many systems, some can’t be attracted by magnet, but some can. And the stainless steel will have a little magnetic after it made to screw or other thing. If need the stainless steel can't be attracted by a magnet, Demagnetization is required. The correct way to discern it is stainless steel or not is using spectroscopic instruments or potions.

Please trust us, we only sell the high quality stainless steel fastener.