10 Piece Switch Socket Screw Hooks Switch Cassette Repairman Support Rods 86 Type Cassette Repair Screws for 86 Type Switch Socket Bottom Box

Worked great to repair damaged metal back box thread, damaged by electrician who used bolt cutters to trim screw, creating a big bur! Decided to fit in non-standard configuration to completely negate any possibility of pulling out. First drilled out damaged thread with 4mm drill. Then bent each toothed end back against existing natural curve (using pliers) evenly such that bar is snug to just loose fit (needs to be even or the holes won’t line up. Then pushed bar in place underneath the lug (just drilled out). That way when you refit your socket or switch the screw will pull the bar tight against the lug. Had to hacksaw the provided screw to reduce length, but if you gently file the end to debur it will still engage fine and not damage new staged bush thread.

Great product. Got us out of trouble a few times now

My back box threads were broken away and we didn’t notice until the tiling had been complete - but these worked perfectly.

Was trying to avoid replacing a back box with a broken mounting lug and the inevitable plastering work that comes with it. These fixings barely squeeze into a 25 mm back box and don't get sufficient grip. Any time I tightened the screw the fixing pulled itself back out. Also an absolute nightmare to get level with the undamaged mounting lug.

Good

Excellent repair for a broken screw holder.

Not sure what why, they were just too short

As a being a advanced diyer , I sometimes dibble dabble in electrical work , such as changing sockets and adding a few spurs there and here. Unfortunately due to age of our sockets sometimes the lugs just either snap off or the thread is cross threaded. lucky these solved that problem. They work really well and would consider any good diyer or trade to have some of these when you get unlucky.