Product Description
LCN 4021 with Regular Arm Metal Cover in Dark Bronze
The LCN 4021 is the heavy-duty closer for demanding commercial applications. Built on the same platform as the 4011, the 4021 adds delayed action — the door stays open briefly before starting its closing cycle, giving people extra time to pass through. Ships in Dark Bronze finish — matches oil-rubbed and dark bronze architectural hardware.
| Brand | LCN (Allegion) |
| Part Number | 4021-REG-LH-DKBRZ-MC |
| Series | LCN 4021 |
| Arm Type | Regular Arm |
| Finish | Dark Bronze |
| Handing | Left Hand (LH) |
| Fire Rating | Non Fire Rated |
| UL Listed | Yes — UL Listed for fire-rated door assemblies |
| Spring Power | Size 1-6 |
| Warranty | 3 years limited manufacturer's warranty |
- Delayed action holds door open briefly before closing cycle begins
- Ideal for high-traffic corridors and ADA-accessible routes
- Size 1-6 adjustable spring power
- Cast iron body built for institutional and commercial abuse
Works With: Updated version of the LCN 4020. Same prep, same footprint. For replacement parts, arms, and covers, search LCN 4021 on our site.
Authorized LCN Dealer — Lock Depot ships all LCN products brand new in factory-sealed packaging with the complete manufacturer warranty. Same day shipping available on most orders. Questions? Contact us for free expert support.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
