Overview
Model # 239-985 Store SKU # 1000127250
Expansion nuts, or well nuts, consist of a flanged neoprene bushing with a threaded nut embedded in the non-flanged end. As the bolt is screwed into the nut, the rubber on the other side of the hole expands and seals the bolt hole.
- Well nuts are used to seal bolt holes and prevent leaking
- High-strength rubber and steel construction reliably combines corrosion resistance with structural integrity
- Upon installation, tightening a machine screw in the brass nut causes the insert to expand, making it secure
- Can be used in either blind or closed-end holes
- Finish: Black
- Parts feature fine #10-32 screw thread