4-24 x 1/2 6 Lobe Flat Thread Cutting Screw Type 25 Fully Threaded Zinc KWMS410 They feature a serrated flange

They feature a serrated flange that digs into the mating surface to prevent loosening

which means they can be driven into metal or wood without the need for pre-drilling

and other home improvement projects

versatile screw that is often used in a variety of applications

4-24 x 1/2 6 Lobe Flat Thread Cutting Screw Type 25 Fully Threaded Zinc KWMS410 They feature a serrated flange4 24 x 1 2" 6 Lobe Flat Thread Cutting Screw Type 25 Fully Threaded Zinc This screw is a 4 24 x 1 2" 6 Lobe Flat Thread Cutting Screw Type 25 Fully Threaded Zinc. It is a high quality screw that is perfect for a variety of applications. The screw is made of zinc and has a 6 lobe flat thread. It is fully threaded and has a type 25 head. The screw is 1 2" long and has a diameter of 4 24. It is a great choice for a variety of applications.