Weideer 1605Pcs Nuts And Bolts Assortment Kit, Stainless Steel Machine, 20 Nuts and bolts association kit is made of 304 stainless steel, which has anti-rust, anti-corrosion and anti-oxidation properties. Better stress, no deformation. Can be used in humid environment. Nuts and Bolts Kit is a must-have Toolkit for families. All nuts, bolts and washers are packed in a Handheld box, with thickened latch and dividers, which are not easy to be confused, easy to carry and easy to take.It can be reused as a toolbox. Nuts, Bolts and Washers are a 1:1:1 matching combination. Don't worry about delaying the progress of the project because of the lack of nuts or washers. These Nuts and Bolts can be widely used in various classification instruments, meters, precision machinery, communication products, electronic products, household appliances, locks, DIY projects and so on. 1605pcs nuts and bolts assembly kit, 32 different sizes of screws. The dimensions of Phillips Pan Head Bolts are #4-40, #6-32, #8-32, # 10-24; The dimensions of Flat Head Screws are #6-32, #8-32, #10-24, #1/4-20.