The Tamiya 15454 JR 2mm Cap Screw Pack is built to improve the structural fastening of Mini 4WD cars. By replacing stock stainless screws with purpose length cap screws, you get firmer clamping on parts such as mass dampers and rollers, helping them resist vibration and impacts.
This pack suits both Mini 4WD standard chassis and PRO models. It includes 25mm and 30mm cap screws plus compatible 2mm nuts and washers. A 1.5mm hex wrench comes with the pack for immediate use and quick tweaks.
These cap screws are a practical upgrade for anyone wanting fewer setup surprises. They lower the chance of screws backing out and contribute to steadier handling during consecutive heats or longer hobby sessions.
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