Guest Posted February 13, 2018 Share Posted February 13, 2018 Does anyone know of a trade name and/or source for the pictured captive nut insert? It's used on older Volvos to secure the transmission shift linkage bracket to the unibody frame rail. It differs from most threaded inserts in that the insert hole is sort of a double keyhole slot style. Volvo's part number for the insert is 941140, but I've verified through Volvo that the part has been discontinued with no replacement or substitution. The last picture gives the hole dimensions and show the individual components of the insert, the threaded nut portion floats in the sheet metal cage. The frame rail doesn't have any easy service access, other than a small drain hole at the bottom of the rail, so a blind insert is the only way to go on this. The frame rail metal thickness is about 0.080", with plenty of depth, at least 0.75". The thread on the insert is 1/4-20. Link to comment Share on other sites More sharing options...
cahartley Posted February 13, 2018 Share Posted February 13, 2018 You might find something workable at McMaster Carr. https://www.mcmaster.com/#threaded-inserts/=1bjpzqs https://www.mcmaster.com/#barbed-inserts/=1bjq013 Link to comment Share on other sites More sharing options...
Friartuck Posted February 13, 2018 Share Posted February 13, 2018 Suggest rephrasing your search. This is not a threaded insert. Try "Captive Nut" , "Cage Nut" or "Speed Nut" . Restoration Specialties in Windber, PA Offers many Cage and Speed Nuts. Restoration Specialties & Supply, Widber, PA 1 Link to comment Share on other sites More sharing options...
Larry Schramm Posted February 14, 2018 Share Posted February 14, 2018 (edited) 11 hours ago, Friartuck said: Suggest rephrasing your search. This is not a threaded insert. Try "Captive Nut" , "Cage Nut" or "Speed Nut" . Restoration Specialties in Windber, PA Offers many Cage and Speed Nuts. Restoration Specialties & Supply, Widber, PA Agree. "threaded insert" generally refers to a "helicoil" or a "timesert" Two different items that usually obtain the same objective. Helicoil: http://www.stanleyengineeredfastening.com/brands/heli-coil Timecert: http://www.timesert.com/ Edited February 14, 2018 by Larry Schramm (see edit history) Link to comment Share on other sites More sharing options...
Frank DuVal Posted February 14, 2018 Share Posted February 14, 2018 Or possibly "Well Nut" as that's what the roof rack and mirror threaded mounting are called. And "Rivnut" is a brand also. No, not a person with many Buick Rivieras! Link to comment Share on other sites More sharing options...
Guest Posted February 20, 2018 Share Posted February 20, 2018 Thanks to all who've responded, knowing the correct name(s) for a part is half the battle. It's hard to find a part when you're referring to it by the wrong name. I'll post a followup after I do a search and hopefully find the part. Link to comment Share on other sites More sharing options...
Guest Posted March 11, 2018 Share Posted March 11, 2018 I wound up using a Rivet Nut from Jay-Cee Sales & Rivet Co, their website is at: https://www.rivetsonline.com. Very helpful people, they sell an inexpensive ($15) tool for installation, too. Pictures of a side view of an installed nut, the installation tool, one nut installed on the car, plus the completed job are shown below. Thanks! Link to comment Share on other sites More sharing options...
Frank DuVal Posted March 11, 2018 Share Posted March 11, 2018 Glad to help and see it came out with a happy ending! We use a lot of those Rivnuts at work building R&D stuff. Like sides of Conex boxes so no need for a person to be inside to mount stuff on the outside. And thanks for a new source of them. Link to comment Share on other sites More sharing options...
Bush Mechanic Posted March 12, 2018 Share Posted March 12, 2018 An elegant solution, which appears to be stronger than the original fitting. Link to comment Share on other sites More sharing options...
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