8-15 x 1 1/2 Phillips Flat Self Tapping Screw Type A Fully Threaded Zinc 9-8 It features a hex washer

It features a hex washer head for easy tightening

The unthreaded portion of the screw measures 5/8 inches in length

This SAE Flat Washer is made of 316 stainless steel

They have a 10-24 thread size

These 10-24 x 1/2 Slotted Indented Hex Washer Head Machine Screws are fully threaded and zinc plated yellow

8-15 x 1 1/2 Phillips Flat Self Tapping Screw Type A Fully Threaded Zinc 9-8 It features a hex washerThese 8 15 x 1 1 2 Phillips flat self tapping screws are Type A fully threaded screws made of zinc. They are designed for use in a variety of applications, including metal, wood, and plastic. The Phillips drive head provides a secure grip for driving, and the self tapping design eliminates the need for pre drilling. The zinc coating provides corrosion resistance, making these screws ideal for outdoor use.