1600PCS M4 M5 M6 Grade 8.8 Heavy Duty Bolts and Nuts Flat & Lock Washers Assortment Kit Includes 15 Most Common Sizes

MATERIALMade of 8.8 grade alloy steel, these screws provide reliable wear resistance, hardness and strength for everyday use. Please note: For best performance, avoid using them outdoors or in damp environments, as this may affect their durability over time. | SPECIFICATIONThis set follows the standard metric system, including hex bolts and nuts, lock washers and flat washers in 15 commonly used sizes: M4*10mm,M4*16mm,M4*20mm,M4*25mm,M4*30mm,M5*10mmM5*16mm,M5*20mm,M5*30mm,M5*40mm,M6*10mm,M6*20mm,M6*30mm,M6*40mm,M6*50mm. There are 400 sets in total, amounting to 1600 pieces (Pitch Size: ,M4*0.7mm,M5*0.8mm,M6*1.0mm) . | PACKINGSupplied in a sturdy, reusable plastic storage box that keeps all components organized and easy to access. Important tip: This product contains small parts, so please store it out of reach of children to prevent the risk of accidental swallowing. | APPLICATIONSSuitable for a wide range of scenarios, such as repairing home appliances, office equipment, communication devices and electronic products. It also works well for assembling furniture, maintaining automotive or motorcycle parts, and supporting various DIY projects. | AFTER-SALES SERVICEWhen you receive the bolts and nuts Kit for the first time, if you find any problems with the product, please contact us and we will resolve it as soon as possible.