10-9 x 2 1/4 Square Phillips Drive Round Washer Deep Thread Type17 2/3 Thread Zinc 8-18 The thread cutting feature allows

The thread cutting feature allows the screw to create its own threads

The screw has a 30 degree full thread

such as attaching metal roofing

These 6-18 x 1 Square Flat Self Tapping Screw Type A Fully Threaded 18-8 Stainless Steel screws are designed for use in a variety of applications

making them ideal for both indoor and outdoor applications

10-9 x 2 1/4 Square Phillips Drive Round Washer Deep Thread Type17 2/3 Thread Zinc 8-18 The thread cutting feature allows10 9 x 2 1 4 Square Phillips Drive Round Washer Deep Thread Type 17 2 3 Thread Zinc is a type of screw that is commonly used in construction and other industries. It is made of zinc plated steel and has a square Phillips drive head. The screw has a round washer head that helps to distribute the load of the screw and prevent it from pulling through the material. The deep thread design of the screw provides a strong hold in a variety of materials.