We have a T430 with a broken hinge (flange attached to the "axle" snapped in half). Unfortunately what we don't have are the knurled brass inserts nor the corresponding screws for attaching a ...

[Pete] bought himself an old South Bend lathe, but unfortunately some of the thumb screws were missing from this fine old machine. Originally, the lathe had knurled thumbscrews, and with a thumbscr… ...

Here’s how it works. With basic tripod head designs, you have to screw a knurled nut through the camera mounting plate and into the tripod bush on the bottom of the camera.