*New!* English Made Triumph & BSA Anti-Theft Steering Lock Grub Screw. This Little Screw will keep your Steering Lock secured from coming out! Cheap Insurance! Measures 1/4″ X 5/16″ X 26 (CEI). Fits Triumph 650 & 750 Unit Twins (Bonneville, T120R, T140, TR7, Tiger, Etc) from 1967-1982. Fits Triumph 350 & 500 Unit Twins from 1967-1974 (Daytona, T100R, Tiger, Etc) from 1967-1974. Also fits many Triumph & BSA Triples from the 1960’s Thorough 1970’s! Please refer to your parts catalog for proper fitment.*****Please note that this Grub Screw will also fit other Triumph & BSA Models that are not listed abouve! Check your parts book!*****Made in EnglandO.E.M Part number is 21-0578, S0578 or S578