We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Though they may not be much to look at, screws hold a place of honor in the ...

PPE supplies nine types of screw tips and a full line of H-13 OEM-direct replacement check ring valve parts. The tips are designed for use with OEM screws and barrels that plasticate general purpose ...

If you've ever mistakenly grabbed the Phillips head screwdriver when you needed a flat head, you've probably asked yourself why there are different types of screws. Let's start at the beginning. The ...