Gas Tank Petcock Bung Hole Taps (1) - Choose Tap Type / Size Type - Specs:1/4" BSP (Thread O.D. .518" x 19 TPI - USE 26/64" Drill Bit) Also fits BSA A10 650

Also fits BSA A10 650 (Goldenflash

M Part number is 622/155

Measures 25MM X 52MM X 15MM with an Internal "C3" Clearance

Matchless & AJS motorcycles up to approx 1967

May also fit other makes and models

Gas Tank Petcock Bung Hole Taps (1) - Choose Tap Type / Size Type - Specs:1/4" BSP (Thread O.D. .518" x 19 TPI - USE 26/64" Drill Bit) Also fits BSA A10 650Before you prep and begin painting your gas tank, make sure your petcock bung holes are clean with sharp threads. It is not uncommon to find gas tanks with damaged or crossed threads from "hacks" over the years We stock a few types of bung hole taps BSPP (British Straight Parallel Pipe & British Standard Pipe Tapered) all suited for various applications on Triumph, BSA, Norton and other makes and models Our petcock bung hole taps can also be used for