These parts are modeled after high-tension bolts, which in real life are used to join steel frames. They’re ideal for adding heavy machinery or military-style detailing to models. Characterized by finely machined hexagonal bolt heads.

To install, drill a hole matching the shaft diameter (0.5mm for 1mm and 1mm for 1.5mm/2mm) at the desired location and secure the part using CA adhesive or clear epoxy glue. These parts can also be attached after painting, effectively concealing the mounting holes and making fine color separation work easier.