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Seven rubber well nuts with flanged bushings and embedded nuts

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 64551 Well Nut Rubber 7 Pack

SKU CH-KS1H-D8J5Z

A rubber well nut kit with seven flanged neoprene bushings and embedded 1/4"-20 threads for blind fastening and sealing bolt holes

  • TypeRivets
  • Rubber well nut seals bolt holes against moisture
  • Neoprene bushing dampens vibration in automotive panels
  • 1/4"-20 thread fits standard machine screws
  • Seven-piece pack covers multiple fastening points
  • Blind-install design works where rear access is impossible

Rubber Well Nut Pack

This seven-piece pack supplies rubber well nuts designed for blind fastening and hole sealing. Each unit combines a flanged neoprene bushing with an embedded nut that accepts a bolt from the flanged side. The hardware suits automotive, marine and general assembly tasks where access is limited to one side of the panel.

Thread And Panel Check

Verify that the host panel thickness and hole diameter match the well nut's expansion range before ordering. Confirm the bolt thread pitch corresponds to the embedded nut specification. Ensure the neoprene material is compatible with any fluids, oils or temperatures present in the application environment.

Replaces Loose Rivets And Gaskets

These well nuts replace separate rivets, bolts and sealing washers in single-sided installations. The jump is worth it when a vibration-resistant, water-tight joint is needed without access to the rear of the workpiece. Buyers needing metal-threaded inserts or higher shear loads should consider alternative fastener types.

Highlights

  • Rubber well nut seals bolt holes against moisture
  • Neoprene bushing dampens vibration in automotive panels
  • 1/4"-20 thread fits standard machine screws
  • Seven-piece pack covers multiple fastening points
  • Blind-install design works where rear access is impossible

Specifications

BrandMIDWEST FASTENER
TypeRivets

Questions about this item

What comes in the 64551 pack and do I need any extra parts to install them?

The pack contains seven rubber well nuts with 1/4"-20 threads; no additional components are required for installation.

How do I decide which well nut to choose from the 64551 line?

This pack is a single specification — 1/4"-20 thread size and 3/4 in length — so there are no alternative versions to select.

What does the 1/4"-20 thread size mean when I use these well nuts in a real assembly?

It means the internal nut accepts a standard 1/4"-20 bolt, allowing you to fasten and seal the hole from one side.

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