Drawer Glides

[RustyJC]

I would think you'd need a countersunk head machine screw to clear the drawer rollers.

Rusty

[DLBatz]

I can get them at an RV salvage place near my home. Didn't cost much and they fit the existing rails just fine. But I'm blessed to be living in Indiana where so many RVs are built and there are several salvage outlets around the state.

[RonTon]

I did not countersink the heads and there is no problem with clearance. The hole in the metal guide is large enough that the head sits down in it.

The nuts that I used have a nylon insert in the top side that provides the locking action. An example can be seen here: Lock Nut

[RustyJC]

A countersunk head screw is the name of a screw with cone-shaped sides on the head. I didn't imply that you countersunk (drilled) the drawer guides. The countersunk head screw will sink lower into the hole in the drawer guide and maximize the clearance between the top of the screw head and the drawer roller.

Rusty

[RonTon]

OK, in my world the term flat head screw means the same as countersunk head screw. See Flat head screw

[RustyJC]

Not to split hairs, but countersunk head screw is defined on pages 1197 through 1209 of Machinery's Handbook, Twentieth Edition.

Rusty