Brand: Union
Union Strongbolt
Red case with matte finish.
Hidden 5G curtain wheel.
Hard-plate straight above the keyway.
If you can see the bolt in the door gap you will see the chamfered edges at the top and bottom of the bolt.
Use a 5 Gauge tension tool with a long wire or use the GJ Fortress / Strongbolt / Yale decoder tool.
Drill to pick:
Measure 21mm up from the top of the keyway then 12mm towards bolt.
Use a 6mm hard-plate drill bit followed by a flat ended drill bit to completely open up the hole without damaging the levers.
Drill for the stump (the last resort):
Measure 21mm up from the top of the keyway then 16mm towards bolt. Consecutive holes may need to be drilled to remove the stump. Use a 6mm hard-plate drill bit.
We cover all leading lock brands
