Originally Posted By: skeettx
Love the front sight

Obviously an old non-factory mod pre-dating Home Depot's ascension, perhaps a classic #8 or smaller solid brass wood screw. The giveaway is that it is not a self-tapping Phillips head drywall screw which is a more modern day invention.

Last edited by GLS; 07/26/14 12:50 PM. Reason: Reviewed a This Old House video for screw sizes