These fork top nuts are made of durable stainless steel and are the correct fitment for many BSA models from 1952-1965. 1952-1962 BSA A7 and A10, 1954-1959 BSA C10, C11, C12. 1949-1953 B31, B32, B33, B34.1962-1965 BSA A50 and A65. 20 TPI CEI threads.
20 TPI CEI fork top nuts are the correct original fitment for road models from BSA WITHOUT the internal threads for the damper rods.
The fork top nuts are threaded into the fork tube and seal the fork oil inside of the tube.
IMPORTANT NOTE: These top fork nuts are 20 TPI with thread OD 1 1/16th” (1.062 “). Check the TPI of your forks before purchase to ensure fitment of these top nuts. See recommend links for a thread pitch gauge.
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