Fastens blind holes and closed-end holes.

Effective seal and cushion against similar and non-similar materials of assembled joints

Tapered-end design for easier installation

Absorbs shock and vibration. Reduces noise.

Protects the drill surface

Removable and  re-insertable

Insulates against electric and static surges.

Ozone and ultra violet exposure light resistance

Threaded brass or stainless steel insert molded into the material

We also provide/sell the full set of the Bonded Rubber-Insert  with Screw and Washer.