SX Series - Grade 1

| SX

Product Description

PDQ’s SX Series cylindrical ball knob lock can fit into your standard 161 door prep, allowing you to easily retrofit your existing doors. This certification makes the SX lock a great solution for multi-family, government facilities, commercial buildings, healthcare, and more.

Our SX lock was designed to withstand high-traffic environments. 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.

Badge_R10968_EN antimicrobial-K

Docs & Downloads:

Brochure

Architectural Submittal Sheet

Templates

Installation Instructions

Discover the SX Series Cylindrical Lock.

630 (US32D) finish

Secure your doors with PDQ’s SX lock. Contact a regional sales rep today!

Features & Benefits

Certifications

PDQ’s SX lock is your ideal door hardware solution when it comes to ball knobs. See the certifications this lock holds below.

UL/CUL 10C listed 3-hour fire door, for single doors up to 4’ x 8’

Connect with a local sales rep to learn more.

FAQs

What's the difference between PDQ's SX lock and the GT/XGT cylindrical locks?

SX uses a CQ ball knob rather than a lever and carries a 5-year limited warranty versus GT’s 25-year and XGT’s lifetime coverage. It’s built on a steel chassis manufactured in Taiwan, making it a lower-cost option where lever trim isn’t required. If a project specifies ANSI/BHMA Grade 1 hardware, choose GT or XGT.

Is the SX lock ADA compliant?

No, its round ball-knob trim doesn't meet ADA/ICC A117.1 operable-parts requirements, which call for hardware operable without tight grasping or twisting. Specify SX only where knob hardware is code-permitted, such as certain interior or non-egress doors.

What door prep does SX fit, and can it retrofit an existing door?

SX is built for standard 160 or 161 cylindrical lock prep with 2-3/8" or 2-3/4" backset options, so it drops into most existing commercial door cutouts as a retrofit replacement for worn knob locks.

How durable is the SX lock, and what cycle testing has it passed?

SX is built with a steel case, a stainless steel latch bolt, and a stainless steel or wrought bronze front and strike. It is backed by a 5-year limited warranty.

Is SX fire rated?

Yes, SX is UL/CUL 10C listed for 3-hour fire doors on single doors up to 4' x 8', with a fire-tested stainless steel latchbolt.

What buildings is the SX lock best suited for?

SX suits multifamily, government, commercial, and healthcare buildings that need a durable, cost-effective knob lock rather than lever-handle hardware. Its antimicrobial coating option suits infection-control-sensitive healthcare settings.

Specifications

Explore the specifications of our SX Series 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”
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 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:	• UL/CUL 10C listed for 3 hrs, for single doors up to 4’0” x 8’0” • TAA compliant. Country of origin: Taiwan