Standard use trim rings, small thin jack plates and pickguard mounting brackets for musical instruments.
2.2mm diameter (#2) by 19mm length (just under 3/4")
Flat head phillips screw setup. (use #1 Philips tip)
Root is .062"
Flat Head with #1 phillips.
Requires good quality #1 phillips screw driver tip
It is recommended you wax this screw when mounting in a new location.