audio-talk

Ray P wrote: ↑Sun May 02, 2021 12:31 pm The packaging says 'Countersunk Allen Bolts' so that'll do me.

I know set screws as grub screws so I'm with Steve.

The difference between a bolt and a set screw is that there is thread the entire length of the set screw, whereas a bolt is only partly threaded. So, an allen bolt would not be fully threaded. Just to confuse a grub screw can also be called a setscrew.

The other common name for allen bolts/screws are socket screws.

steve s wrote: ↑Sun May 02, 2021 7:51 pm https://en.m.wikipedia.org/wiki/Set_screw

From your quote,

"Set screw or setscrew in the UK refers to a bolt which is fully threaded, with no smooth shank. These commonly have a hex head, but are also found with socket or screw heads."

Which is what I said.

Different in USA.

Thats a fair cop phil

steve s wrote: ↑Sun May 02, 2021 8:35 pm Thats a fair cop phil

My first job was at Marconi, and every electrical apprentice had to go through the workshop training program. That's where I learned workshop practice including drilling, lathe work, welding etc. Even the proper way to use hand tools. Hardware terminology has stuck with me, even after 50 years.