2401 - Single cylinder (outside) Application For use with ASSA Modular, Rim, Connect and Narrow Profile lockcases. Specification The cylinder is fixed to the lockcase with two hardened steel screws, supplied with the accessory set.ASSA accessories must be used. Finish Standards Downloads 2401 - Single cylinder (outside) (.pdf, 53 kB) Close Ordering Options 10435409013 2401 M/K NO KEYS *NEW SYSTEM* Close 2402 - Double cylinderFor use with ASSA Modular, Rim, Connect and Narrow Profil… 2403 - Single cylinder (inside)For use with ASSA Modular, Rim, Connect and Narrow Profil… 2409 - Single rim cylinder (inside)For use with ASSA Modular, Rim, Connect and Narrow Profil…