TR65 TR7 T140V T140E TSX. TRIUMPH OIL SUMP PLATE STUD SET. 21-2109 stud x4 (over all length 1" 5/16 unf threads both ends). I have been in the classic motorcycle trade for over 40 years. As a rule we try and source our spares from British manufacturers if at all possible and aim to provide a choice between genuine parts and good quality pattern parts.