Principal 16mm U-Rail Espag Bar£8.50
WMS 14mm U-Rail Espag Bar£13.80 – £24.84
WMS 16mm U-Rail Espag Bar£16.80 – £24.80
These types of espag lock have offset gearboxes, which sit alongside the edge of the faceplate, as viewed from the end-on.
Make sure to check the backset size also, as shown:
Most espags use ‘Mushroom’ cams, but some espags also have the option for ‘Roller’ cams.