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The standard screws for the IF15 kit available in 6-10pcs packs. The screws used in all INFINITY kits are made of high performance steel and made in Japan. They are extremely stable and strong when tightened. Recommended not only as a spare part but also as a setting option.
Long body post to reduce body mount plate to inclease chassis flex.
The new SS version is more durable than previous gear housings due to a review of the manufacturing process, including the shape and materials used.
As the name "SS => Strong Support" suggests, the spur gear support is increased, minimizing the chance of stripping gears.