11-08-2020, 03:26 AM
"Some cars are very confusing. Years ago I was working on a friend's Triumph Vitesse 1600 and was very puzzle trying to rebuild the front suspension until I realised it was BSF.The rest of the car was Unified. I assumed the unit was just carried over from previous models."
Yes, also Hillman/Humber product with those unique self locking nuts on the just -under -3/8 UNF [11/32?] big end fasteners which would catch out the unwary fitters of 3/8 UNF self locking nuts.
Much more recently, on another make who had an apparent love of a mix of 'standard' and 'foreign' fasteners, the 'umbrella style' park brake had two 5/16 x 18 UNF nuts on its floor pan mount [captive bolts] , but the nut at dashboard mount [captive bolt again] was M8 x 1.25. Booby trap waiting for the air wrench aficionados replacing a park brake cable.
My own vehicle, which although an Austin isn't a Seven: I tend to follow Martins example, BSF/BSW/ and slotted screw heads, not cross-head etc. when visible/critical unless there's no feasible alternative. UNF as second choice. Invisible woodwork I tend to use Robertson. I try to avoid stainless. Having worked through the UNF to Metric years, I do this for no particular reason other than I only want to need to use the one set of wrenches/sockets on it. I've found quite a bit of 1/4 UNF/M6x1 driven into 1/4 BSF threaded holes on it too.
Yes, also Hillman/Humber product with those unique self locking nuts on the just -under -3/8 UNF [11/32?] big end fasteners which would catch out the unwary fitters of 3/8 UNF self locking nuts.
Much more recently, on another make who had an apparent love of a mix of 'standard' and 'foreign' fasteners, the 'umbrella style' park brake had two 5/16 x 18 UNF nuts on its floor pan mount [captive bolts] , but the nut at dashboard mount [captive bolt again] was M8 x 1.25. Booby trap waiting for the air wrench aficionados replacing a park brake cable.
My own vehicle, which although an Austin isn't a Seven: I tend to follow Martins example, BSF/BSW/ and slotted screw heads, not cross-head etc. when visible/critical unless there's no feasible alternative. UNF as second choice. Invisible woodwork I tend to use Robertson. I try to avoid stainless. Having worked through the UNF to Metric years, I do this for no particular reason other than I only want to need to use the one set of wrenches/sockets on it. I've found quite a bit of 1/4 UNF/M6x1 driven into 1/4 BSF threaded holes on it too.