6-20 x 3/8 Combination Pan Head Self Tapping Screw Type AB Fully Threaded Zinc N x L188 The 4-inch length refers to

The 4-inch length refers to the overall length of the screw from the tip to the end of the threads

The #8 External Tooth Lock Washer Black Zinc and Bake is a high-quality washer that is designed to provide a secure and reliable connection

This type of screw is commonly used in metalworking and construction applications

they offer a secure and flush fit

6-20 x 3/8 Combination Pan Head Self Tapping Screw Type AB Fully Threaded Zinc N x L188 The 4-inch length refers toThese 6 20 x 3 8 inch combination pan head self tapping screws are Type AB screws with a fully threaded design and a zinc coating. They are designed for use in metal applications and feature a pan head with a flat top and rounded sides. The self tapping design allows the screws to create their own threads as they are driven into the material, eliminating the need for pre tapping. The zinc coating provides corrosion resistance and helps to extend the