1020 Pcs M3 M4 M5 M6 Nuts and Bolts Assortment, Countersunk Bolts and Nuts Set, Countersunk Screws Set, Flat Head Hex Socket Head Cap Machine Screws and Washers Kit(Black)

• Superior Materials: nuts and bolts assortments are made of high-quality carbon steel, resistant to breakage and deformation, high strength, high hardness, corrosion resistance, and rust prevention, ensuring durability and stability.
• Hex Socket Head Countersunk Screw and Nut Set: The hex socket head cap screw/countersunk head design is suitable for confined spaces where the head needs to be flush with or below the surface.
• Practical Design: Equipped with nuts and washers, protecting parts while ensuring precise installation. The fully threaded design improves tightening strength, force balance, and ease of operation.
• Wide Range of Applications: Widely used for fixing components in household appliances, furniture, automobiles, motorcycles, communication equipment, electromechanical equipment, marine equipment, transportation equipment, and construction machinery.
• Package Includes: 1020 pieces total, including nuts and washers of corresponding sizes. Sufficient quantity and complete sizes to meet daily needs. Deep and clearly defined threads ensure a secure fixation, preventing deformation or slippage during use.

What are the advantages of our flat head hex socket head cap screws? 1. The bolt and nut set is made of high-quality carbon steel, featuring high hardness, high strength, resistance to breakage or deformation, scratch resistance, corrosion resistance, rust prevention, and durability. 2. The flat-head socket head cap screws have clear threads and uniform pitch. The flat/countersunk head design allows for a wider tension range and lower average load during tightening. 3. The hexagonal design of the flat head socket head cap screws not only provides higher torque but also reduces the risk of slippage and damage during tightening. 4. Equipped with a nut and washer, it ensures more precise tightening and extends the service life of the screws and parts. 5. Suitable for repairing furniture, machinery, electronic products, electrical appliances, household appliances, DIY projects, communication equipment, etc. Features: Material: Carbon steel Color: Black Quantity: 1020 pieces Packaging includes: M3*8: 50pcs M3*12: 40pcs M4*8: 30pcs M4*12: 30pcs M5*8：20pcs M5*12：20pcs M6*8：10pcs M6*12：10pcs M3*16：30pcs M3*20：30pcs M4*16：15pcs M4*20：15pcs M5*16：10pcs M5*20：10pcs M6*16：10pcs M6*20：10pcs M3 Washers: 150pcs M3 Nuts：150pcs M4 Washers：90pcs M4 Nuts：90pcs M5 Washers: 60pcs M5 Nuts：60pcs M6 Washers：40pcs M6 Nuts：40pcs Warm Tips: Dimensions are measured manually, please allow slight errors. Color may vary slightly from the online image due to your monitor color settings, please refer to the actual product, thank you for your understanding.