These short jack nuts feture coarse 1/4"-20*18.6L thread.
Parts made of high-strength steel,Zinc finish for improved corrosion resistance, making it last longer than other hardware on the market today. They won't distort or deform soft plastics or thin sheet metals.
These Quad-leg rivet nuts are great applications where thin, soft or brittle materials are utilized. When tightened, the body collapses to form legs that grip the inside of the mounting surface. The result is a permanent, reusable threaded insert.
This larger head allows for more clamping force distributed over a wider surface area. Larger heads are escpecially beneficial while working with softer or thin metals to prevent pull through.