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Product Description
PDQ’s SX Series cylindrical ball knob lock is ANSI/BHMA Grade 1 certified. This certification makes the SX lock a great solution for multi-family, government facilities, commercial buildings, healthcare, and more. Our SX series can fit into your standard 161 door prep, allowing you to easily retrofit your existing doors.
Our SX lock was designed to withstand high-traffic environments and it was tested over 800,000 cycles. Choose from a range of functions and keyway options to fit your specific requirements, ensuring seamless addition into various applications. The SX Series is backed by a 5-year warranty.
Connect with a PDQ sales representative to learn more about the SX Series and secure your high traffic areas today.
Docs & Downloads:
Discover the Grade 1 performance of the SX Series Cylindrical Lock
- Tested over 800,000 cycles
- 630 (US32D) finish
Secure your doors with PDQ’s SX lock. Contact a regional sales rep today!
Features & Benefits
Certifications
Specifications
Explore the specifications of our SX Series Grade 1 Cylindrical Lock. These locks are built to withstand your high-traffic needs.
FOR DOORS: | • 1-3/8” to 2” thick |
DOOR PREP: | • Fits Standard 160 or 161 Door Prep |
BACKSET: | • 2-3/8”, 2-3/4”, 3-3/4”, 5” |
CASE: | • Steel, Yellow Chromate Plate |
FRONT: | • 2-1/4” x 1-1/8” or 2-1/4” x 1” • Stainless Steel or Wrought Bronze. |
STRIKE: | • 4-7/8” x 1-1/4” (ASA). “T” or “FL” Strike Optional • Stainless Steel or Wrought Bronze |
UL F LATCHBOLT: | • 3 hours of fire testing qualified, stainless steel latch bolt |
ROSE: | • 3” DIA Wrought |
HAND: | • Non-handed |
TRIM: | • CQ ball knob. Stainless steel or wrought brass |
KEYWAYS: | • Available in keyways of most major manufacturers |
CYLINDER: | • Supplied standard to accommodate SFIC core. (Cylinder not included) • Standard High Security and UL437 Cylinders Available |
KEYING: | • Standard core is available and can be MK, CMK, GMK, or CK. Available Zero Bitted (KO), Keyed Different (KD), Keyed Alike (KA). Can be keyed into existing masterkey systems of other manufacturers |
FINISHES: | • 630 (US32D) |
CERTIFICATIONS, LISTINGS, COMPLIANCES: | • Meets ANSI/BHMA A156.2–2003 Grade 1, surpassed 800,000 cycles • UL/CUL 10C listed for 3 hrs, for single doors up to 4’0” x 8’0” • TAA compliant. Country of origin: Taiwan |
WARRANTY: | • Five (5) Year Limited Warranty |
Lever Designs & Finishes
See below for the finishes and levers available for our SX Series ball knob lock.
Finishes

Levers

Compatible Products
Boost your security with the compatible PDQ door hardware solutions below. These work seamlessly along with our SX Series ball knob lock.
Related Products
Explore the door hardware solutions related to PDQ's SX Series below.