EZ NUT 2-1/4

Part# 11-01831
DescriptionPart Number
EZ NUT 2-1/4"11-01831


Take the frustration out of mounting instruments with the use of Superior Panel Technology’s EZ Nuts.

EZ Nut Advantages
  • Adhesive tape securely holds nut ring in place. No realignment if instrument is later removed.
  • Includes four 1 ½” non-magnetic black oxide stainless steel, pan-head screws. Stronger than brass
  • Includes four black nylon washers to prevent marring of the panel.
  • Aluminum bezel is treated to prevent corrosion.
  • The pressed in stainless steel inserts eliminate the problem of striped threads.
  • Only need to stock two sizes since you simply cut off one corner if only three screws needed.
  • Save labor time when compared to “grasshopper nuts”.
  • 100 degree countersunk screws available and are sold in packs of eight.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.

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These EZ Nuts work exactly as advertised and save lots of time over other means of mounting round standard aviation size gauges. Worth the money!

Leonard W
March 16, 2022

Thomas H Verified Purchase

EZ NUT 2-1/4

December 17, 2021

William P Verified Purchase

EZ NUT 2-1/4

December 11, 2021

Great product!

Louis B Verified Purchase

EZ NUT 2-1/4

August 9, 2021

Much easier than using the individual plate nuts that wear out easily making it almost impossible to remove an instrument when you need to.

Michael R
August 25, 2020

Worked exactly as advertised. Much less hassle than old-style inserts.

James B
August 23, 2019

Larry C
April 2, 2018

Great product, easy to use, why did I not use these years ago is beyond me. One of the best right up there

Rory H
February 10, 2018

Easy, no measurement issues for standard instruments. Worth having if you find yourself removing instruments to gain access to other things behind the panel.

Stephen T
April 21, 2017

As the owner of Superior Panel Technology, I can tell you that we strive to do all we can to make a line of useful, quality products. The majority of the products that we make and sell were developed as a result of our building a Velocity and a Lindy award winning RV6. I am sorry that Steve Stucky had such a problem with an EZ Nut. Prior to designing these, we took measurements on instrument bodies from several manufacturers. All of the 3 1/8 instrument bodies measured in the 3.10 range. We made the inner diameter of our 3 1/8 EZ Nut as large as possible (3.165) and still have enough material to securely hold the pressed in stainless steel nut. This easily accommodated the 3 1/8 instruments we tested which did include a few UMA 3 1/8 instruments. We have contacted UMA and have been informed that all of their 3 1/8 instruments do have bodies that measure 3.10 EXCEPT for their 3 1/8 altimeter which measures 3.18. We have also found out that the UMA 2 1/4 instruments have larger bodies than other manufacturers. Their 2.25 body measures 2.33 in outside diameter which is wider than our 2.29 opening on the smaller 2 1/4 EZ Nut. We have sold over 5,000 EZ Nuts over the past 3 years and can tell you that they do fit and work great. Customers tell us that our choice of stainless steel over brass makes a stronger product and the 3M double sided tape holds securely once mounted properly. To our knowledge, the UMA 3 1/8 altimeter and the UMA 2.25 instruments are the only ones that do not work with the EZ Nuts. We wish Steve would have realized that it did not fit and simply returned it for a refund. Please contact me directly if you discover that our EZ Nuts do not fit another manufacturers instruments and we will try to post this information. Thank you, Ken Whitaker (

Ken W
April 5, 2016


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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