The Hirobo HI2534023 is offered as a 20-piece set of M1.7 x 5 tapping screws intended for routine work on model helicopter parts. These fasteners create their own thread in suitable plastic or composite housings without changing the original mounting geometry.
Use the screws when replacing missing fasteners or when breaking down sub-assemblies for cleaning and inspection. Because they are thread-forming, avoid excessive torque to reduce the risk of stripping the material or enlarging the hole.
They are best used to retain minor fixtures such as linkage mounts, small brackets, and trim pieces during setup and after adjustments to ensure consistent reassembly.
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