Rule <R11> C

Need some clarification on rule R11 C. I am seeing end game launchers using large nuts to shoot as a projectile connected to a string. The rule states “Any commercially available nut, washer, standoff, and/or nonthreaded spacer up to 2.5” (63.5) long which fits these screws. I am not sure of the legality of the larger nuts. 2.5 is huge. The rule does not specify diameter.

Those are legal pneumatic tank nuts.

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Thanks, that makes since now.

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