843Pcs #4-40#6-32#8-32#10-24 Nuts And Bolts Assortment Kit Phillips Pan, 1/2" Common Models #4-40 #6-32 #8-32 #10-24 Assorted Screws with Nuts, Flat Washers and Lock Washers Meet More Demands: Nice set screw assortment kit. 60 x 4-40 Screws, 60 x Nuts, 60 x Washers, 60 x Lock Washer; 60 x 6-32 Screws, 60 x Nuts, 60 x Washers, 60 x Lock Washer; 60 x 8-32 Screws, 60 x Nuts, 60 x Washers, 60 x Lock Washer; 30 x 10-24 Screws, 30 x Nuts, 30 x Washers, 30 x Lock Washer; 2 Hex keys; 1 Tweezers; 1 nut and bolt organizer 21 Sizes 4 Models More Choices, Custom 4/5/6 Lengths for 1 Model: Machine Screw Assortment Kit with Phillips Pan Head SAE System and Lock Washers] Different size of #4-40 #6-32 #8-32 #10-24 assorted nuts and bolts, flat washers, lock washers total 840pcs. The average error is less than 0.01mm High Quality 304 Stainless Steel. More Than 20 Years of Experience in Fastener Tool Production: Stainless steel nut bolt assortment sets, rust resistance and deep thread. Extraordinary Technology Professional Durability More Clean and Tidy: Each screw is packed separately in a transparent bag, and then put in the organizer to avoid confusion. Storage: Nut and bolt assortment all are stored in one bolt organizer box, easy and convenient for storing and carrying, in case of missing or confusing K Kwokker Nut and Bolt Set Can Be Widely Used: in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc. It is a great gift for family, father, husband, uncle, etc