Q Acoustics 3000/3000i - Q. I want to mount my bookshelf loudspeakers on another bracket, what is the size of the screw on a 3000WB?
Answer:
The screw/bolt used on the 3000WB/WB50 is an M8 socket head type, with an overall length of 46mm, of which 22mm would normally protrude through the 3000WB/WB50, 14mm of this is threaded. The pitch of the a standard coarse M8 thread is 1.25mm.