Description
Specialinsert Rubber-Nut 1/4-20 Imperial Threaded Insert is a Rubber-Nut insert for adding a threaded fixing point in panels, boxed sections, and fragile materials. The EPDM body and internal brass bushing create a vibration-damping mount without a welded nut or rear-access hardware.
Rubber-Nut Insert Benefits
- EPDM body helps isolate vibration between the mounted part and the panel.
- Internal brass bushing provides the threaded connection for the mating screw.
- Installation is completed by tightening the screw, so no special setting tool is required for the insert family.
- Useful where a rigid metal rivet nut may transmit vibration or mark the receiving material.
- Works in boxed or tubular sections where backside access is limited.
This insert is a practical choice when a component needs to be fastened to sheet metal, plastic, composite, or other thin material that benefits from a cushioned threaded anchor. Drill or prepare the hole to the specified size, seat the insert, then tighten the mating screw so the rubber body compresses and holds in the panel. Confirm panel thickness and hole size before production installation.
Common Applications for Rubber-Nut Insert
- Mounting covers, panels, light brackets, and access parts.
- Adding threads in boxed, tubular, or blind-access sections.
- Reducing vibration transfer in light mechanical assemblies.
- Fastening into fragile materials, plastic sheets, or thin metal sheet.
- Repair work where a removable screw connection is needed without welding.
Compatible Materials and Installation Notes
- Suitable for boxed or tubular parts, fragile materials, plastic sheets, metal sheet, and similar panel materials when the hole and grip fit the insert.
- Use the matching screw thread and do not over-tighten beyond the assembly requirement.
- Check the installed insert after tightening to confirm it is seated squarely.
- Test representative parts before using the insert on finished panels.
Rubber-Nut Insert Technical Specifications
| Property | Value |
|---|---|
| SKU | SPE-RN1/4-20030T160 |
| Thread | 1/4-20 imperial |
| Head Diameter | 16 mm |
| Length | 16 mm |
| Body Diameter | 12.7 mm |
| Body Material | EPDM |
| Bushing Material | Brass |
Packaging and Ordering
Order this insert when the assembly needs a 1/4-20 threaded anchor with vibration damping and blind-side installation. Browse related rivet nuts and Deform-Nut fasteners, and review current fastening resources from Specialinsert.
Need Help?
Need help matching thread, hole size, or panel thickness to this insert? Call (800) 220-1966 or email [email protected].







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