Uploaded October 2025 | Updated September 2026, 2 weeks ago
When plaster or cement blocks the lugs in a chased-in metal box, it can make fitting accessories like sockets or light switches frustrating. The 3.5 mm machine screws often become difficult or even impossible to thread properly.
A quick and reliable solution is to re-tap the threads using a 3.5 mm hand tap. This cleans out the hardened debris, restores the threads, and ensures your screws go in smoothly.
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2 and 3.
You can follow me day by day on Facebook, Instagram, Twitter and TikTok lookout for "GSH Electrical”.
#GSHElectrical #Electricaltrainingvideos #electricalwork #electricalwiring
When plaster or cement blocks the lugs in a chased-in metal box, it can make fitting accessories like sockets or light switches frustrating. The 3.5 mm machine screws often become difficult or even impossible to thread properly.
A quick and reliable solution is to re-tap the threads using a 3.5 mm hand tap. This cleans out the hardened debris, restores the threads, and ensures your screws go in smoothly.
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2 and 3.
You can follow me day by day on Facebook, Instagram, Twitter and TikTok lookout for "GSH Electrical”.
#GSHElectrical #Electricaltrainingvideos #electricalwork #electricalwiring










