8-18 x 3 1/2 Square Drive Flat Trim Head Self Drilling Screw Full Thread Zinc D985A4 The 1/4-14 x 1 1/4

The 1/4-14 x 1 1/4 Phillips Flat Undercut Full Thread Self Drilling Screw is a versatile and durable fastener designed for a wide range of applications

The bonded NEO EPDM washer provides a seal against water and air

The bolt is made of steel for strength and durability and meets ASTM A307 specifications

Its compact size and versatility make it a popular choice for securing components in tight spaces or where weight reduction is a concern

These bolts are manufactured in North America to meet the highest quality standards

8-18 x 3 1/2 Square Drive Flat Trim Head Self Drilling Screw Full Thread Zinc D985A4 The 1/4-14 x 1 1/4These 8 18 x 3 1 2" Square Drive Flat Trim Head Self Drilling Screws are designed for use in a variety of applications, including metal to wood, wood to wood, and metal to metal. They feature a square drive head for easy installation, a flat trim head for a clean finish, and a self drilling tip that eliminates the need for pre drilling. The full thread design provides maximum holding power, and the zinc coating offers excellent corrosion resistance.