Vis machine 1/4-20 x 2-1/2" | Tête bombée, empreinte fendue | Acier brut (300 / paquet)

Finally got around to mounting my workbench vice and these truss heads sat perfectly flush in the counterbore holes. The slotted drive was easy to torque down with a standard screwdriver, no stripped heads. Plain steel works fine for my indoor shop setup.

Went through nearly a full box securing electrical conduit straps—every thread caught cleanly with no stripping. The truss head sits nice and flush against the metal, and at 2-1/2 inches they gave me just enough bite into the wood studs. Solid value for the price.

Used these to mount some shelving brackets in my garage and the truss heads sit flush and look clean. The 2-1/2 inch length gave me just enough bite into the studs without poking through the drywall. Plain steel is fine for indoor use, no rust issues so far.