PDQ SD Series Grade 2 Cylindrical Locks & Lever Sets
The PDQ SD Series is a premier Grade 2 cylindrical lockset designed to deliver professional-grade performance in standard-duty commercial environments. Engineered with a heavy-gauge, cold-rolled steel mechanism and a high-strength return spring to prevent lever sag, the SD Series is built to withstand the daily rigors of offices, multi-family housing, and hospitality facilities. Certified to ANSI/BHMA A156.2 Series 4000 and featuring a UL 3-hour fire rating, this series provides a reliable and cost-effective solution for interior and exterior openings where Grade 1 hardware is not required but Grade 2 durability is essential.
PDQ SD Series
Combine modern architectural aesthetics with universal compatibility using the PDQ SD Series. This value-engineered cylindrical lock is the ideal retrofit choice, featuring removable thru-bolts that adapt to standard door preparations while providing superior torque resistance. With five distinct lever styles—including the popular Philadelphia and Boston designs—and a wide array of finishes, the SD Series seamlessly integrates into any building's design. Whether you are maintaining a legacy key system or installing a new SFIC (Interchangeable Core) network, the SD Series offers the flexibility, ADA compliance, and ease of installation that modern facility managers demand.
View the PDQ SD Series Catalog for a breakdown of standard functions, tactile abrasive coating options, and available keyway integrations.
Download SD Series Drill Templates for precise installation into wood or metal doors with 2-3/4" or 2-3/8" backsets.
SD Series Locksets
The PDQ SD Series is the industry's most valuable Grade 2 cylindrical lock, value-engineered to balance high performance with budget-conscious project requirements. Featuring a heavy-gauge cold-rolled steel mechanism and a 5-year warranty, these locks are ideal for interior and exterior doors in offices, hospitality, and multi-family residential buildings. With removable thru-bolts for easy installation and a wide array of designer levers, the SD series provides professional-grade security without the premium price tag.