Nuts are 1/4" BSPP (British Straight Parallel Pipe) which also happens to be 1/2" (
Simply add your existing inspections caps and covers and install
Everything pictured is included from the "5" Head Bolts
Only Compatible with 7/8" Diameter Handlebars
Fits Triumph Early 650 Twins (Bonneville
Triumph Kickstart Return Spring Plate (1) 57-1422 - 1957-74 - T90 / T100 Grey Nuts are 1/4" BSPP (British*Just Arrived From England!* New UK Made Triumph 350 & 500 Unit Twins Kickstart Return Spring Plate. As we all know, this Return Spring Plate becomes Damaged from over time! Often times its Missing from the "Barn Find" Engine! This is an Excellent Quality O. E. M. Part! Fits all Triumph Unit 350 & 500 Twins (Daytona, T100R, Tiger, T100, T90, 3TA, 5TA, Twenty One, T100A, T100C, T100T, Etc) from 1957 1974. Please refer to your parts catalog for proper