10-16 x 1 1/4 6 Lobe Pan Self Tapping Screw Type AB Fully Threaded Black Oxide D439B while the serrated flange helps

while the serrated flange helps prevent loosening due to vibration or movement

making it an ideal choice for projects requiring a secure and long-lasting connection

This 1/4-20 x 1 1/4 inch fully threaded carriage bolt is made of steel and has a zinc finish

The 5/16-18 thread size ensures compatibility with a wide range of bolts and screws

10-16 x 1 1/4 6 Lobe Pan Self Tapping Screw Type AB Fully Threaded Black Oxide D439B while the serrated flange helpsThese 10 16 x 1 1 4" 6 Lobe Pan Self Tapping Screws Type AB are fully threaded and coated in black oxide for corrosion resistance. They feature a 6 lobe drive for increased torque and reduced cam out, and are designed to tap their own threads in metal or plastic. With a length of 1 1 4", these screws are ideal for a variety of applications, including fastening sheet metal, plastic, and other materials.