400 Pieces M3 X 30Mm /35Mm /40Mm /45Mm /50Mm, Hex Socket Head Cap Metric Screws
- 【Sizes】 M3 x 30mm /35mm /40mm /45mm /50mm hex socket head cap screws with matching hex nuts, lock washers and flat washers, total 5 sizes, different sizes can meet your different needs.
- 【Material】Made of high quality 12.9 grade alloy steel and the surface is treated with black oxide, high hardness, no deformation, anti-oxidation, wear resistance, corrosion resistance, which can ensure long time using.
- 【Package】400 pieces in total, packed in a durable transparent box with label. It is easy to distinguish the size of the product, when you want to use a certain screw, you don't have to waste time buying it separately, you can choose the suitable one to meet all your needs.
- 【Wide Applications】Widely used in all kinds of precision machinery industry, classified instruments, instruments, electronic products, printed projects, household appliances, communication products, locks, lamps, lights, toys, etc.