1/4-14 x 7/8 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake MST188 while the serrated point helps

while the serrated point helps to prevent the screw from slipping

The bolt is also Grade 5

The self-drilling point allows for easy installation without the need for pre-drilling

00 DIN 439 Class 04 Hex Jam Nut Zinc is a high-quality nut designed for use in a variety of applications

These screws are zinc plated for corrosion resistance and have a bake coating for added durability

1/4-14 x 7/8 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake MST188 while the serrated point helpsThis 1 4 14 x 7 8 inch unslotted indented hex washer self drill screw is made of steel with a zinc and bake finish. It has a full thread and is designed for use in metal applications. The self drilling tip eliminates the need for pre drilling, making installation quick and easy. The indented hex washer head provides a secure hold and prevents the screw from slipping. This screw is ideal for a variety of applications, including attaching metal roofing