Product Details
The B5/16-18 x 1/2" machine screw features a flat head design with a Phillips drive, made from steel with a zinc CR+3 finish for corrosion resistance. This 100-pack is intended for use with pre-tapped holes or nuts, ensuring a secure mating thread. The flat head style is ideal for applications where the fastener must not protrude above the mating surface. The screws measure 5/16-18 in diameter with a length of 1/2 inch, providing reliable fastening performance. These machine screws comply with standard specifications for steel fasteners and come with a manufacturer warranty covering defects in materials and workmanship.








