Shop/Category/Fig. 13 — SWINGING ARM/BSA Nut, chainguard to swinging arm (1/4" British Standard Cycle)
Details
| Also known as | 40-414 |
| Diagram | Fig. 13 — SWINGING ARM · ref 18 |
| Subsystem | frame |
| Listed in parts books | 1969–1970 |
BSA Nut, chainguard to swinging arm (1/4" British Standard Cycle)
A 1/4 inch BSC nut that fastens the chainguard to the swinging arm.
PN · 40-0414
This is a 1/4 inch British Standard Cycle nut used to secure the chainguard to the swinging arm. It's a small fastener but a specific one, cut to the BSC thread standard rather than a common UNF or UNC, so it's worth having the correct nut on hand rather than substituting something off the shelf.
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