Needhelp securing nuts to a metal plate

[Peter Glus]

I have a small plate that I want to move up and down by turning a threaded rod. The plate is not thick enough to tap it, so I was doing some research and found sleeve nuts. However, i want the plate to hold forces up and down, and sleeve nuts seem 1 directional. Ideally, if they could make a 2 piece sleeve nut that locks onto the plate that would be ideal. Any help out there? This in advance

 

[TugboatEng]

Rivet nuts or Click Bond.

 

[LittleInch]

Puit the nut underneath and glue it or weld it or braze it to the plate?

We don't have any details here???

 

[mfgenggear]

OP
Weld a flange nut to the plate. How thick is the plate. A quick sketch would be helpful.
What type of load. FBD is usefull

 

[Peter Glus]

 

[Peter Glus]

Problem with welding is the plate is aluminum and the nut is ss

 

[Peter Glus]

Also, axial load both up and down is 100#

 

[rb1957]

tap the hole ?? hold the nut in place whilst you tighten it ??

There seem to be plenty of solutions ... inside and outside the box ... ??

 

[Peter Glus]

I think I might try to get a weld nut with a large flange and bolt the flange

 

[rb1957]

why not a rivnut ?

 

[Peter Glus]

Rivnut seems less strong, but I could be wrong

 

[mfgenggear]

The Benefits of Using Rivnuts for Fittings (Updated for 2025) | ASM

Rivnuts, commonly referred to as rivet-nuts, are hardware components used to fasten two pieces of sheet metal together. Learn the benefits.

www.approvedsheetmetal.com

 

[SnTMan]

Ummm. Drill three holes in a piece of steel. Tap the center one. Bolt or rivet it to the plate with the other two....

Regards,

Mike

 

[Peter Glus]

Mike, silly of me...i think that's the best solution. Many thanks for the clarity, as this should be stronger that rivet nuts.

 

[SWComposites]

Nutplates. Come in all types and sizes. Used all over aircraft.

 

[mfgenggear]

View attachment 5464

AI Overview



+1



The force on a screw with a nut can be calculated using formulas that consider the torque, friction, and other factors.

Torque

• T = kDP
  Estimates fastener torque, where T is torque in newton-meters, k is the coefficient of friction, D is the fastener diameter in millimeters, and P is the desired tension in kilonewtons
  
  
• T = KFiDb
  Calculates bolt load based on applied torque, where K is the torque coefficient
  

Lead screw

• (F) = K x C X 106 x d4 /D2
  Calculates the maximum column load, where F is the load, K is the end support factor, C is the material factor, d is the root diameter of the screw, and D is the length between the nut and the support bearing
• (T) = (F x L) / (2 x M x E)
  Calculates the torque to move a load, where T is the torque, F is the load, L is the lead, and E is the efficiency

Bolt break force

• Multiplying the ultimate tensile or yield by the cross sectional area of the bolt gives the actual force to failure

Tensile load

• The tensile load a fastener can withstand is determined by the formula P = St x As

 

[SnTMan]

Peter, happy to help