1021B-05-41 Simplex Pushbutton Lock with Knob, Combination Entry and Best Core Override in Antique Brass

Product Description

The Dormakaba Simplex 1021B-05-41 is a mechanical pushbutton lock providing combination-based access control without batteries or wiring. Built for commercial applications where reliability matters.

Key Features

• All-mechanical operation - no batteries to replace, no wiring required
• Single access combination with thousands of possible codes
• Combination changed at the keypad without removing lock from door
• Prepped for Best SFIC key override - core sold separately
• Vandal-resistant solid metal pushbuttons
• Weather-resistant for indoor/outdoor installation
• 3-hour UL/ULC fire rated

Technical Specifications

• Model: 1021B-05-41
• Series: Simplex 1000 Series
• Function: Combination Entry with Key Override
• Finish: Antique Brass (US5/609)
• Grade: ANSI/BHMA Grade 1
• Backset: 2-3/4 in. (70mm)
• Latch Throw: 1/2 in. (13mm)
• Door Thickness: 1-3/8 in. to 2-1/4 in.
• Handing: Factory handed LH (field reversible)
• Fire Rating: 3-hour UL/ULC
• Warranty: 3 Year
• Key Override: Best SFIC (core not included)

Installation Notes

• Standard cylindrical prep - 2-1/8 in. cross bore, 1 in. edge bore
• No electrical or low-voltage work required
• Template and mounting hardware included
• Ships LH - easily field reversed for RH doors

The Simplex 1000 Series has been the industry standard for mechanical pushbutton access control for over 50 years. Lock Depot stocks the full Simplex line with competitive pricing and fast shipping.