SDC Concealed Direct Throw Mortise Bolt Locks, Fail Safe (Open Box)

The fail-safe 110 and fail-secure 210 are the most basic bolt locks available. The bolt assembly is adjustable forward up to 1 inch (25.4mm) past the face plate to accommodate wide door gaps or special applications.

Recommended for metal frames and cabinets with a minimum depth of 5 inches.

NOTE: Not for use in wood frames.