Features:
Rubber exterior provides electrical insulation between fastener and substrate, lowering the risk of galvanic corrosion when dissimilar metals join. Combined with a brass insert, this arrangement preserves thread integrity while minimizing electrochemical interaction.
Expanding well nut design produces radial expansion inside the hole when tightened, delivering reliable pull-through resistance on thin-walled or flexible materials. The rigid brass thread and deformable rubber sleeve secure attachments without thick substrates.
Specifications:
Material: rubber, brass
Color: black
Size: 1/4"-20 x 3/4"
Package includes:
20 x Rubber well nuts
Notes:
Manual measurement, please allow slight errors on size.
The color may exist a slight difference due to different screen displays