Your Triumph Dolomite Suspension fixing
Upper arm bolt
Type: Hex Head Bolt
UNF Thread. OEM part number: HB1022. A deeper nyloc nut is also used, 11/16" AF head, OEM p/n: YN2910.
Thread length: 2 3/4 inch
Thread diameter: 7/16 inch
Threads per inch (tpi): 20
Years covered:
197219731974197519761977197819791980Our thanks to Andy Steeple for this submission.
Whether you are purchasing OEM or off the shelf replacements, please be aware that metal fixings are graded and, for safety, you should talk with the supplier about your specific use.