PDQ SX148 Grade 1 Classroom/St...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$193.86
PDQ SX148 Grade 1 Classroom/Storage Cylindrical Knob Lock

PDQ SX148 Grade 1 Classroom/Storage Cylindrical Knob Lock

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Model: SX148CQ630L
$193.86
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$193.86
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PDQ SX148 Grade 1 Classroom/Storage Cylindrical Knob Lock

Grade 1 Heavy Duty Ball Knob Cylindrical Lock

The PDQ SX148 is the Classroom/Storage function (ANSI/BHMA F84) of the PDQ SX Series Grade 1 Heavy Duty Ball Knob Cylindrical Lock.

The PDQ SX Series is a ball knob cylindrical lock that meets ANSI/BHMA A156.2 Grade 1 and is designed to withstand high-traffic environments. It fits standard 160 or 161 door prep, so it can be used to retrofit existing doors.

The SX uses a CQ ball knob in 630 satin stainless steel finish, is UL/cUL 10C listed for 3-hour fire doors on single doors up to 4'0" x 8'0", and is backed by a 5-year limited warranty.

Key Features

  • Meets ANSI/BHMA A156.2 Grade 1
  • CQ ball knob trim with 3" diameter wrought roses, 630 (US32D) finish
  • Fits standard 160 or 161 door prep on 1-3/8" to 2" thick doors, 2-3/4" or 2-3/8" backset
  • Steel case with yellow chromate plate
  • UL F stainless steel latchbolt, qualified for 3 hours of fire testing
  • Non-handed
  • Keyed functions available in keyways of most major manufacturers, with small format IC core options
  • UL/cUL 10C listed for 3 hours on single doors up to 4'0" x 8'0"; TAA compliant; five (5) year limited warranty

Technical Specifications

  • Grade: Grade 1
  • ANSI/BHMA Function: F84
  • Lock Function: Classroom/Storage
  • Keyed Function: Single Cylinder
  • Lock Type: Cylindrical
  • Backset (Distance): 2-3/4"
  • Door Hand Direction: Non-Handed
  • Fire Rated: Yes
  • Warranty: 5-year
  • ANSI Standard: A156.2
  • Fire Rating: UL/CUL 10C 3-hour, single doors up to 4' x 8'
  • Door thickness: 1-3/8" to 2" thick
  • Door prep: Fits standard 160 or 161 door prep
  • Backset: 2-3/4" standard, 2-3/8" optional
  • 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 standard; T or FL optional; stainless steel or wrought bronze
  • Latchbolt: UL F latchbolt, 3 hours fire testing qualified, stainless steel
  • 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: Spec page: supplied standard to accommodate SFIC core (cylinder not included); standard high security cylinders available
  • Keying: Standard core available MK, CMK, GMK or CK; zero bitted, keyed different, keyed alike; can be keyed into existing masterkey systems
  • Default furnished: 2-3/4" latchbolt with 2-1/4" x 1-1/8" faceplate, ASA strike, SCC keyway unless otherwise stated

Available Options

  • Finish: 630 - Satin Stainless Steel
  • Cylinder: Conventional Cylinder, Less Cylinder, SFIC Prep with 6-Pin Core, SFIC Prep with 7-Pin Core, SFIC Prep, Less Core, SFIC Prep with Construction Core, SFIC Prep with Plastic Construction Core
  • Knob Style: CQ Ball Knob
  • Also selected when ordering: Backset, Strike, Keyway, Keying, Dust Box

Each configuration has its own PDQ part number, for example SX148CQ630D.

Certifications

  • Meets ANSI/BHMA A156.2 Grade 1
  • UL/CUL 10C listed for 3 hrs, for single doors up to 4'0" x 8'0"
  • TAA compliant

Typical Applications

  • Multifamily buildings
  • Government facilities
  • Commercial buildings
  • Healthcare facilities

Frequently Asked Questions

Is the SX lock ADA compliant?
No. Its round ball knob trim does not meet ADA/ICC A117.1 operable-parts requirements, which call for hardware operable without tight grasping or twisting. The SX should be specified only where knob hardware is code-permitted.

What is the difference between the SX and PDQ's GT and XGT locks?
The SX is also Grade 1, but it uses a CQ ball knob rather than a lever and carries a 5-year limited warranty. It is a lower-cost Grade 1 option where lever trim is not required.

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

Product Specs

Department:
Door Hardware
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leverset
Product Category:
Mechanical Locks
Product Model:
SX148
Commercial/Residential:
Commercial
Series:
SX Series
Grade:
Grade 1
ANSI/BHMA:
F84
Lock Function:
Classroom/Storage
Keyed:
Yes
Electronic:
No
Door Hand Direction:
Non-Handed
Warranty:
5-year
Tags:
pdq sx148, sx148 pdq, sx148
Subcategory:
Cylindrical Locks
Duty Level:
Heavy Duty
Product Attribute:
Cylindrical Locks
Lock Type:
Cylindrical
Handle Type:
Knob
Product Function:
Classroom/Storage
Keyed Function:
Single Cylinder
Backset (Distance):
2-3/4"
Standard Strike:
4-7/8" x 1-1/4" ASA standard
Cylinder and Keyways:
Available in keyways of most major manufacturers
Fire Rated:
Yes

PDQ SX148CQ630L – Frequently Asked Questions

1) Will the PDQ SX148 fit my existing door prep, or do I have to re-bore?
No new boring needed on a standard commercial cylindrical opening. The SX148 fits standard 160 or 161 door prep on doors 1-3/8 inch to 2 inch thick, with a 2-3/4 inch backset standard and 2-3/8 inch available as an option. That covers most existing knob lock cutouts, so it drops in as a replacement for worn hardware.
2) What does the Classroom/Storage function on the SX148 actually do?
The SX148 is ANSI/BHMA F84, Classroom/Storage. The outside knob is locked or unlocked by key only; there is no inside button or thumbturn. The inside knob always retracts the latch for free egress. It is a single cylinder lock, so one key controls the outside trim.
3) Can I use the PDQ SX148 on a fire rated door?
Yes. The SX148 is UL/cUL 10C listed for 3 hours on single doors up to 4 feet by 8 feet, and the stainless steel UL F latchbolt is qualified for 3 hours of fire testing. Note the rating is for single doors at that size, so a pair or an oversized leaf needs a different listing review.
4) Is the SX148 knob lock ADA compliant for a classroom door?
It is not. The CQ ball knob trim does not satisfy ADA/ICC A117.1 operable-parts requirements, which call for hardware usable without tight grasping or twisting of the wrist. Specify the SX only where knob hardware is permitted by code; on an accessible route you need lever trim instead, such as PDQ's GT Grade 1 lever lock.
5) Do I have to order a cylinder separately with the SX148?
That depends on which version you pick. The conventional cylinder version (SX148CQ630D) comes keyed. The Less Cylinder version (SX148CQ630L) ships without one. The SFIC prep versions are set up for a small format interchangeable core: SX148CQ630SF6 with a 6-pin core, SX148CQ630SF7 with a 7-pin core, SX148CQ630SFL prepped less core, and SX148CQ630SFC or SX148CQ630SFP with a metal or plastic construction core. If you keep your own SFIC stock, order the less-core prep.
6) Can the PDQ SX148 be keyed into our existing master key system?
Yes, if your system runs on a keyway PDQ offers. The SX148 is available in Schlage C, C-K and E, Corbin 59A1, 60 and L4, Russwin D1, Sargent LA and RA-RC, Arrow AR1, Accentra (Yale) E1R and GA, Falcon E-R, Kwikset (5-pin only), and PDQ's restricted TA. Keying choices include keyed different, keyed alike in groups, 0-bitted with two blank keys, construction master keyed, master keyed, or master keyed to existing bittings. Unless you state otherwise it is furnished in Schlage C.
7) Will the SX148 latch work with the strike already in my frame?
Three strike options cover the common frame preps. The standard is the 4-7/8 x 1-1/4 inch ASA strike in 630 stainless. If your frame has a smaller cutout, order the T-strike at 1-1/8 x 2-3/4 inches or the full lip strike at 1-5/8 x 2-1/4 inches. Match the option to what is mortised into the jamb and you avoid patching the frame. A dust box can be added where the strike pocket is open.
8) Do I need to specify handing when I order the SX148?
No handing to worry about. The SX148 is non-handed, so one lock covers left and right hand doors, inswing or outswing. For a property manager stocking spares across a building that means a single part number works on every opening.
9) Is a Grade 1 knob lock like the SX148 tough enough for a high traffic government or healthcare corridor?
It is built for that duty. The SX Series meets ANSI/BHMA A156.2 Grade 1, the highest cylindrical lock grade, and is rated heavy duty for commercial use, with a steel case and yellow chromate plate and a stainless steel latchbolt. PDQ lists it for multifamily, government, commercial and healthcare buildings. The limit is not durability, it is the knob trim, which rules it out on accessible openings.
10) Is the PDQ SX148 TAA compliant for a federal project?
Yes, the SX Series is TAA compliant, which is what a government or institutional buyer needs for Trade Agreements Act procurement. It also carries ANSI/BHMA A156.2 Grade 1 and a UL/cUL 10C 3-hour fire listing for single doors up to 4'0" x 8'0", so it covers the usual spec line items on a federal submittal.
11) What finish and trim does the PDQ SX148 come in?
One finish and one trim style: the CQ ball knob with 3 inch diameter wrought roses in 630 satin stainless steel, also called US32D. If you are standardizing a building on satin stainless door hardware it will match; there are no brass or bronze finish choices on this model.
12) Is the PDQ SX148 an electronic or access control lock?
No, the SX148 is a purely mechanical keyed cylindrical lock. There are no credentials, no wiring, and no power requirement, so nothing fails when the building loses power. Access is controlled by key only on the outside knob.
How fast can I get the PDQ SX148CQ630L delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the PDQ SX148CQ630L come with a warranty?
Absolutely. The PDQ SX148CQ630L is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the PDQ SX148CQ630L?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the PDQ SX148CQ630L from ZenSupply?
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