1/2-13 x 2 Six Lobe Flat Floor Board Screw Type F Black Phosphate PSW14410 1/4-14 x 2 1/2 Phillips

1/4-14 x 2 1/2 Phillips Flat Undercut Full Thread Self Drilling Screw Zinc & Bake is a versatile and durable screw designed for a wide range of applications

They have a full thread

Coarse thread

while the hex washer head enables easy tightening with a wrench or socket

The washer has a hex head with markings that indicate the grade and size of the bolt or screw that it should be used with

1/2-13 x 2 Six Lobe Flat Floor Board Screw Type F Black Phosphate PSW14410 1/4-14 x 2 1/2 Phillips1 2 13 x 2 Six Lobe Flat Floor Board Screw Type F Black Phosphate is a type of screw specifically designed for securing floorboards. It features a 1 2 inch diameter, 13 threads per inch, and a 2 inch length. The six lobe drive design provides a secure grip, preventing the screw from slipping during installation. The flat floor board head sits flush with the surface of the floorboard, providing a clean and professional appearance. The black phosphate