4813 - Single cylinder (inside) Application For use with ASSA Modular and Connect lockcases. The cylinder is fixed with four high security hardened steel screws, supplied with the accessory set. ASSA accessories must be used. Specification Finish Standards Downloads 4813 - Single cylinder (inside) (.pdf, 59 kB) Close Ordering Options 10261309913 4813 TO PASS NO KEYS Close 4811 - Single cylinder (outside) 4812 - Double cylinder