This is the little joiner clip that joins the 2 halves of your windscreen chrome plastic finisher trim.

It is usually discoloured and often missing altogether

The part number is 611437

It suits most (but not all) Triumph windscreens - if in doubt please check part number 611437

It fits:

SPITFIRE MK1 MK2 MK3 (NOT MKIV, NOT 1500)

GT6 MK1 MK2 (NOT MK3)

HERALD ALL

VITESSE ALL

DOLOMITE & SPRINT ALL

2000/2500 REAR SCREEN ONLY

TR4/5/6

TR4 REAR SURREY TOP SCREEN