8-15 x 1 3/4 Phillips Flat Self Tapping Screw Type A Fully Threaded Black Oxide NS8 The unthreaded portion below the

The unthreaded portion below the head provides a washer-like surface

it has a Grade 8 rating

The Phillips oval head provides a secure grip for driving and prevents stripping

The 5/16-18 x 1 Unslotted Indented Hex Washer Head Machine Screw Fully Threaded Black Oxide is a versatile and durable fastener designed for a wide range of applications

8-15 x 1 3/4 Phillips Flat Self Tapping Screw Type A Fully Threaded Black Oxide NS8 The unthreaded portion below theThese 8 15 x 1 3 4 Phillips flat self tapping screws are Type A screws, meaning they have a flat head and a single flute thread. They are fully threaded, meaning the threads extend the entire length of the screw. The black oxide finish provides corrosion resistance and a sleek appearance. These screws are commonly used in metal to metal applications, such as attaching sheet metal to a frame. They can also be used in wood to metal applications, but pre