190 PCS 304 Stainless Steel Screws and Nuts M4 Hex Socket Head Cap Screws Gasket Wrench Assortment Set Kit

1 Parts that are tightly connected to mechanical equipment etc The gasket is used to increase the contact area reduce the pressure prevent loosening and protect parts and screws 2 Scope of application automotive industry cars trucks passenger cars construction machinery wind power equipment agricultural machinery foundry industry drilling equipment shipbuilding industry mining equipment utilities rail transit 3 Surface treatment wash bright 4 Standard type German standard 5 Product specifications M4 x 6mm 10PCS M4 x 8mm 10PCS M4 x 10mm 10PCS M4 x 12mm 10PCS M4 x 16mm 10PCS M4 x 20mm 10PCS Hex nut 65PCS Washer 65PCS