Cross Recessed Threaded,500 Pcs M4 X 16/18/20/22Mm Metric Hex Socket Countersunk Flat Head Screw Bolts - 304 Stainless Steel(M4*16 500)

Robust Stainless Steel: Constructed from premium-grade 304 stainless steel, these bolts exhibit exceptional resistance to corrosion and oxidation. Comprehensive Bolt Set: This bolt set comprises 500 pieces of M4 metric internal hexagon countersunk flat head bolts, with lengths ranging from 16mm to 22mm. Flush Countersunk Flat Head: Featuring a countersunk flat head structure, these bolts sit flush with the surface upon installation. This prevents protrusions and interference with other components, resulting in a tidy and streamlined appearance. Internal Hexagon Design: Designed with an internal hexagon head, these bolts facilitate efficient torque transmission during tightening. This feature simplifies the process of securing the bolts, reducing the likelihood of loosening and ensuring the stability of assembled components. Versatility Across Applications - With a comprehensive range of sizes, this assortment proves invaluable across a wide spectrum of applications, including home decor, industrial construction materials, medical instruments, and various accessories.