The hardened surface won't allow the set screw
to bite into the steel.
Even so, I am not a big fan of gas blocks with set screws
due to the potential for failure.
In their discussion they mention that the migration could be the result of failure of the set screw
or insufficient fastening of the set screw
Use a drill bit that will just clear the threads in the set screw
hole and drill a shallow dimple in the barrel.
The bi-metal thermostats can be ordered with either set screw
or adjustment shaft, and they are mounted using a simple screw in a 4.2 mm hole for drop-in installation or replacement.
Equipped with a quick-change crimp frame, the bottom die just lifts out and the top die is held in with only one set screw
. The closing ram is activated by an operator controlled foot pedal.
Do not tighten any further and leave the set screw
A set screw
securely locks your favorite eyepiece in place.
To remove a standard handle, loosen the small set screw
(Photo 1) on the underside.
The handle is completely rounded and smooth, extending 5[inches] from the center set screw
. The underside features a raised dimple at the end of the handle to provide nonslip gripping.
Others, such as the XS Express Night Sight, slip easily into the dovetail and then tighten by means of a set screw
. Either works properly if understood.