Well Nuts Metric Rubber Brass Insert

Well Nuts Metric Rubber Brass Insert Product Video

Metric Rubber Brass Insert Well Nuts

Flanged EPDM Insert With An Internal Metric Threaded Brass Nut

  • Creates a waterproof seal
  • Highly corrosion resistant - Marine Grade
  • Easy to install or remove
  • Can be installed into blind holes
  • Minimizes vibration and shocks

Metric Well nuts are a mostly rubber (EPDM) fastener with a hidden brass nut near the end. They have a flange on one end with a long barrel that is inserted into a hole. Metric Well nuts are a common choice for waterproofing holes where an attachment is needed. A metric well nut is also commonly referred to as a rawl nut, rawlnut, or a rubber rivet nut.

Well Nuts are a great choice to help prevent Galvanic Corrosion.

SKU Thread Size Grip Range Hole Size (+.002/-.000)
1111-148-0012 M4-0.7 0.40mm - 4.00mm 7.90
1111-148-0022 M5-0.8 0.40mm - 4.90mm 9.60
1111-148-0032 M5-0.8 0.85mm - 5.90mm 9.60
1111-148-0042 M6-1.0 0.80m - 4.70mm 12.70
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Product Specifications
Additional Sizing Info
Corrosion Resistant
Neoprene EPDM Rubber / Brass
Product Type
Metric Well Nut
System of Measurement (Unit)
Thread Direction
Right Hand
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances

Product Video

Well Nuts Metric Rubber Brass Insert Product Video