You can search high and low in every industrial and fastener supply listing and you won't find top quality scale screws like these. How do we know? Because we did it for months until we had these custom machined for us. Made in the USA from 416 stainless steel that is heat treated for hardness and melonite finished. Head takes the commonly available 3/32 allen wrench. Price includes one screw and one nut/bushing (male and female set).

To accommodate a wider range of blade and grip thicknesses, we have had this batch produced with two different sized nuts (bushings, female end). The screw (male portion) is the same for either set. Just select your bushing (female) size.
Short Bushing: .330 (when fully screwed together) to .425 (with 5 turns of thread engagement)
Long Bushing: .455 (when fully screwed together) to .550 (with 5 turns of thread engagement)