4-40X3/8 3/16 Hex Jackscrew Male Zinc IPP making this screw ideal for

making this screw ideal for heavy-duty projects

The self-tapping threads create their own mating threads in the metal

The square flat head provides a flush finish

This screw is commonly used in applications where corrosion resistance is required

4-40X3/8 3/16 Hex Jackscrew Male Zinc IPP making this screw ideal forThe 4 40X3 8" 3 16 Hex Jackscrew Male Zinc is a threaded fastener with a 4 40 thread size, a 3 8" length, and a 3 16" hex head. It is made of zinc plated steel for corrosion resistance and has a male thread pattern, meaning it is designed to be screwed into a female threaded hole. The hex head provides a convenient grip for tightening and loosening the jackscrew using a hex key or wrench. This jackscrew is commonly used in various applications, such