Rshuhx 300pcs Round head Bolts and nuts Washers Series set 304 Stainless steel M5 M6 M8 hexagonal Cylindrical Mechanical Classification box kit With wrench

【Combination Size】Our stainless steel round head screw and nut: M5x16,M5x20,M5x30,M6x20,M6x30,M6x40,M8x30,M8x40,Total 300pcs, 8 kinds of models. One purchase can meet your diverse needs. Both the screws and nuts are placed in a transparent plastic box with matching labels, which is easy to use and install. 【Material】: The machine screw set is made of 10.14 grade carbon steel. Black surface treatment, not easy to rust, moisture-proof, oxidation-resistant, corrosion-resistant, acid and alkali resistant and high hardness 【Details】Our screws and nuts conform to the standard metric system, and the thread pitch is about 1mm. The thread is very smooth, sharp and accurate. It is not easy to deform and slide during work. 【Application】: Screw and nut combination kits can be used in industry, household goods, construction, furniture, automobiles, motorcycles, machinery, equipment maintenance and other DIY projects. Very suitable for replacing damaged and lost screws to meet your daily needs. 【customer service】 If you are receiving the bolt and nut kit for the first time and encounter product issues, please contact us via email. We will solve this problem as soon as possible. If you have any questions or suggestions about our products, you can always contact us via email to provide good service to our customers. This is always our first step.