sleeve nut, for top cylinder head stud, allen head

This column nut is the correct nut for the 12 o'clock cylinder stud on big twin Guzzis. Used on most all big twin Guzzis from 1969 through 2005. Also used on the lower cylinder studs on most all small twin 500s, 650s and 750s until 2015. Notable exceptions are V700, V65 Lario, Daytona 1000, Centauro, Daytona RS.Found on the following models: 1969-1971 V7 Special, Ambassador, 850GT, Eldorado, V7 Sport, 750S, 750S3, 850T, 850T3, 850T4, V1000 Convert, V1000 G5, 850 LeMans, LeMans II, CX100, SP1000, SP II, SP III, Strada, LeMans III, LeMans 1000 all years LeMans IV and LeMans V, 850T5, Mille GT, 1000S, California II, California II Automatic, California III, California III injected, California 1100, EV, EV Touring, Jackal, Bassa, California Special, Special Sport, California Stone, Stone Touring, Aluminum, Titanium, Stone Metal, Quota 1000, Quota ES1100, 1100 Sport carb, 1100 Sport injected, V11 Sport, V11 LeMans, Rosso Mandello, Nero Corsa, Scura, Tenni, V11 Cafe Sport, V11 Sport Naked, Ballabio, Coppa Italia, V35, V35 II, V50, V50 II, V50 III, V50 Monza, V65C, V65SP, V65TT, Florida, Nevada, Nevada Club, Nevada Classic 750IE, Breva 750, V7 Classic, V7 Cafe Classic, V7 Racer, V7 Stone, V7 Special, V7 Racer II, V7 Stone II, V7 Special II, V7 Stornello II.