This is an RC-scale spring adjust nut designed for Mugen MTX-5 applications, manufactured by Arrowmax and identified as AM-MTX-H2704. The part uses 7075-grade material as stated in the product name to provide a harder adjuster option where hobbyists prefer a firmer threaded interface on shock assemblies.
Functionally the nut serves as the threaded collar that sets spring preload on coilover-style shocks, enabling incremental changes to ride height and corner balance. In tuning workflows it’s a component used to lock and fine-tune preload settings rather than a wear item subject to regular replacement, which makes material choice relevant to longevity under repeated adjustments.
Installation is straightforward for compatible shock shafts: the nut is threaded onto the shock body or shaft to set the desired preload position and then used to secure that setting. Verify thread fit and engagement before final assembly to ensure consistent adjustment range and to avoid cross-threading on the shock shaft.
Compatible with Mugen MTX-5 chassis components that accept threaded spring adjust nuts of the MTX shock standard as indicated by the product classification. Confirm part fitment against your shock model before purchase.
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