For secure small-scale fixings in RC models, the Yokomo ZC-SS34A M3x4mm set screws are a useful item to have in your toolkit. The screws are 3mm diameter and 4mm long, and the 10 piece pack is intended to cover routine assembly and repair needs.
The Yokomo ZC-SS34A set screws fit a variety of chassis types, including MRTC-BD919, MDR-020 and SDR-020, allowing you to use the same small fasteners across several models.
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