Part# 12-02443
MFR Model# CWNL-5/32


Wing Nut Fasteners are recommended for low production applications where high clamping force is required.The clamping force ranges from zero to 300 lbs.
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These wing nut Clecos are just what we needed to improve our maintenance procedures. Ordering was easy, and they arrived on time, as scheduled!

Robert M Verified Purchase


June 26, 2023

Well built and a must have in any tool box.

98x, L
April 18, 2020

solid well made

Monte H
March 4, 2019

Works great on keeping flanges pulled down for final drilling and riveting.

December 22, 2017

Long Reach Sheet Holder was the only tool I found that could hold 3/4 stack of aluminum doublers together for my Main Spar. Works great!

Gary K
November 27, 2017

I purchased these in 3/32 size to tightly clamp the lower tail cone skins of an RV-14 build project. The arched ends of the clamping wires have a lower profile than standard cleco clamps. The lower profile caused the clamping wires to pull straight through dimpled #40 holes well before any meaningful clamping force could be applied, proving the clamps to be worthless for this application. I tried obtaining a return RMA online and found they are not returnable. I called customer service and asked where on the website I could find that they are not returnable before ordering the product and was told I probably could not. After I fussed a little about it, the rep did issue a return RMA. The rep was polite and considerate. I will be further investigating the companys return policy before ordering another product.

Jeffrey Y
September 19, 2022


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.

Q: What are the number sizes? #40, #30, #21, #10 referring to Clecos.

It is the drill number for the holes. You would need a #10 drill for the #10 cleco.

Q: What is the full length of Part# 12-02441 (1 grip range wing nut style Cleco)?

Just under 4 inches overall.

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