Replacement screw set for Lightweight Labware extrusion backers. Covers the flat-head M3 screws used to fasten Voron backers to 2020 extrusion; choose black oxide, stainless steel, or titanium. Why these screws Sized for Lightweight Labware Titanium Extrusion Backers and the Voron extrusion-backer install pattern. Flat-head profile sits cleanly in countersunk backer plates instead of standing proud of the extrusion. Use with M3 post-assembly/hammerhead T-nuts in 20-series extrusion; pair with Hammerhead T-Nuts for 20 Series Aluminium Extrusion when you need nuts too. Specifications Black oxide / stainless steel set: 10 × M3x6mm flat-head screws and 20 × M3x8mm flat-head screws. Titanium set: 30 × custom Ti M3x7mm flat-head Torx screws. Thread: M3 metric, intended for M3 T-nuts in 2020/20-series printer extrusion. Fitment For Voron V2.4 and Trident extrusion-backer installs using Lightweight Labware backers. Backers mount opposite the linear rail: top of Y extrusions and rear/top of X depending on rail layout. Not included Backer plates, T-nuts, Torx key, rails, extrusion, or printed parts. Check your backer material and countersink before forcing screws; M3 flat heads are easy to strip if misaligned. “Backer screws for your Ti or SS backers… make the install dead simple.”
