Titanium Pivot Screw/Scale Screws/Deep Carry Clip Made for Zero Tolerance ZT0808
They're made of grade5 6AL-4V titanium.

5 scale screws include 4 scale screws + 1 steel insert screw.

A full set includes 2 standoffs + 1 pivot screw + 4 scale screws + 1 steel insert screw + 1 deep carry clip w/ 2 titanium screws. 

There are 3 colors available: Plain, Anodized Bronze, and Anodized Blue.

Listing is for the titanium parts only. Knife is not included.