8-15 x 3 1/2 Phillips Pan Self Tapping Screw Type A Fully Threaded Zinc WS316 while the 100º angle allows

while the 100º angle allows for easy installation in tight spaces

Its 1/4-20 thread pitch provides a secure hold

which means that they can be used to fasten materials of different thicknesses

This lock washer is commonly used in construction

8-15 x 3 1/2 Phillips Pan Self Tapping Screw Type A Fully Threaded Zinc WS316 while the 100º angle allowsThese 8 15 x 3 1 2 Phillips Pan Self Tapping Screw Type A Fully Threaded Zinc screws are designed for use in metal, plastic, and wood applications. They have a Phillips pan head with a self tapping point that eliminates the need for pre drilling. The screws are fully threaded for maximum holding power and are zinc plated for corrosion resistance. They are available in a variety of lengths and diameters to meet your specific needs.