Product specifications:metric screws assortment,M2 M3 M4 M5 x 8mm/12mm/16mm/20mm screws with Nuts,Washer,Wrenches.total 4 sizes.
Widely used in:Hex Socket Head Cap screws are suitable for all kinds of household appliances,3D printers,precision machinery,toys and electronic products,etc.
Product material:metric machine screws are made of 12.9 Carbon Steel,The surface is treated with black oxidation.Strong and durable, not easy to damage, rust-proof, anti-corrosion.
Product packaging:M2 x 8mm/12mm/16mm/20mm(50PCS each in 4 sizes.)+M2 Nuts/Washer(200PCS each)+M3 x 8mm/12mm/16mm/20mm(20PCS each in 4 sizes.)+M3 Nuts/Washer(80PCS each)+M4/M5 x 8mm/12mm/16mm/20mm(10PCS each in 8 sizes.)+M4/M5 Nuts/Washer(40PCS each);Total: 1084PCS Screw Bolts,Nuts,Washers and Wrenches.