Replacement knobs for the Mobility Support Harness; the knobs hold the handle on the harness. This is the “old style) female knob that screws ONTO the threaded posts on your harness support bars for harnesses made BEFORE December 2015.

Choose black knobs or wing nuts:

Set of 3 of black knobs for handle assembly. The black knobs are smooth and low-profile. (New style!) Includes rubber washers if you need, some people like them to prevent the knobs from loosening.

Set of 4 wing nuts for handle assembly. These wing nuts have self-locking nylon inserts to prevent the knobs from loosening. Some people find the wing nuts easier to turn.

(Be sure to use some teflon plumber’s tape on the threads! You can get this at any hardware store, sorry we don’t sell the tape.) 



We recommend keeping an extra knobs or wing nuts handy in case one gets lost.

The knob style has recently changed to the pictured knobs. (The old style larger, rounder knobs are no longer available.)

NEW TIP to keep your knobs on! Add some teflon plumbers tape to the threaded post, as shown in last photo. You can get this at any hardware store. It increases the friction and helps keep the knobs tight. Just add a little of the tape to the screw part and then put the knob on the harness. Works like magic to keep it from loosening.


Additional information

Weight 0.18 lbs
Dimensions 4 × 3 × 1 in



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