1/4-20, 1/2-13, 3/8-16, 5/16-18 Hex Head Screw Bolt, Stainless Steel 18-8(304), Fully Threaded,10pcs (1/4”, 475);

Item:Hex Head Cap Nuts Screw with Washers Assortment;
Package dimension:8.25x4x1 inch;
Package including:
Hex Bolt:20pcs M4*16, 20pcs M4*25, 20pcs M5*20, 20pcs M5*25, 20pcs M6*20;
Nut:50pcs M4, 50pcs M5, 25pcs M6;
Lock Washers:50pcs M4, 50pcs M5, 25pcs M6;
Flat washers:50pcs M4, 50pcs M5, 25pcs M6
These Hex Head Bolts, Nuts and Washers are often used in your life, all 475 pieces are put in one plastic case individually,
there is a brief instruction attached, you can differentiate those sizes easily, it is a good choice to storage it for unexpected need.