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PDQ SX116 Grade 1 Entrance Cylindrical Knob Lock
Grade 1 Heavy Duty Ball Knob Cylindrical Lock
The PDQ SX116 is the Entrance function (ANSI/BHMA F109) 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: F109
- Lock Function: Entrance
- 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 SX116CQ630D.
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.
Manufacturer Resources
PDQ SX Series Architectural Submittal Sheet
Product Specs
- Department:
- Door Hardware
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Product Type:
- Knobset
- Product Category:
- Mechanical Locks
- Product Model:
- SX116
- Commercial/Residential:
- Commercial
- Series:
- SX Series
- Grade:
- Grade 1
- ANSI/BHMA:
- F109
- Lock Function:
- Entrance
- Keyed:
- Yes
- Electronic:
- No
- Door Hand Direction:
- Non-Handed
- Warranty:
- 5-year
- Tags:
- pdq sx116, sx116 pdq, sx116
- Subcategory:
- Cylindrical Locks
- Duty Level:
- Heavy Duty
- Product Attribute:
- Cylindrical Locks
- Lock Type:
- Cylindrical
- Handle Type:
- Knob
- Product Function:
- Entrance
- 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 SX116CQ630L – Frequently Asked Questions
1) Will the PDQ SX116 fit an existing 161 door prep without redrilling?
Yes. The SX116 is built for standard 160 or 161 cylindrical prep, so it drops into most existing commercial knob-lock cutouts. It covers doors 1-3/8 inch to 2 inch thick and is offered in both 2-3/4 inch (standard) and 2-3/8 inch backsets, which are the two prep centers you will find on existing openings. Rose is 3 inch diameter wrought, so it covers wear rings around older trim.
2) Is the PDQ SX116 knob lock ADA compliant for a public corridor door?
No. The SX116 uses a CQ ball knob, and round knob trim does not satisfy ADA/ICC A117.1 operable-parts requirements for hardware usable without tight grasping or twisting. Specify it only where knob hardware is permitted, such as inside dwelling units or non-public rooms. If the opening is in an accessible route, you need lever trim instead.
3) What does the F109 Entrance function on the PDQ SX116 actually do?
F109 Entrance on the SX116 means a single cylinder on the outside knob: key retracts the latch, and the inside knob is always free for egress. The outside knob can be locked by the inside push-button or turn depending on the function hardware, and it is keyed with one cylinder only, so there is no key on the room side. Non-handed, so one lock works on either swing.
4) Does the PDQ SX116 come with a cylinder, or do I have to order one separately?
Depends on which cylinder option you pick. The SX116 is offered as a conventional cylinder version (SX116CQ630D), a less-cylinder version (SX116CQ630L), and several small format interchangeable core preps: 6-pin core (SX116CQ630SF6), 7-pin core (SX116CQ630SF7), SFIC prep less core (SX116CQ630SFL), with brass construction core (SX116CQ630SFC), or with plastic construction core (SX116CQ630SFP). On the SFIC-prep-less-core and less-cylinder versions you supply the cylinder or core yourself.
5) Can the SX116 be keyed into my building's existing Schlage or Sargent masterkey system?
Yes. The SX116 can be ordered in the keyways of most major manufacturers, including Schlage C, C-K and E, Sargent LA and RA-RC, Corbin 59A1, 60 and L4, Russwin D1, Arrow AR1, Accentra (Yale) E1R and GA, Falcon E-R, Kwikset (5-pin only), and PDQ's restricted TA. Keying choices run from keyed different and 0-bitted with two blank keys through keyed alike in groups, master keyed, master keyed to existing bittings, and construction master keyed, so it can be folded into a system already in the field.
6) What do I have to specify when ordering a PDQ SX116 besides the cylinder?
Five items are chosen on the order in addition to the cylinder type: backset and faceplate (2-3/4 inch with 2-1/4 x 1-1/8 faceplate, or 2-3/8 inch with 2-1/4 x 1-1/8, 2-1/4 x 1, or 2-1/4 x 1 radius faceplate), strike, keyway, keying, and dust box. If nothing is stated, PDQ furnishes a 2-3/4 inch latchbolt with the 2-1/4 x 1-1/8 faceplate, ASA strike, and Schlage C keyway.
7) Is a knob lock like the SX116 tough enough for apartment turnover and high-traffic commercial doors?
The SX116 meets ANSI/BHMA A156.2 Grade 1 and is classed heavy duty, built around a steel case with yellow chromate plate and a stainless steel latchbolt. Grade 1 is the top commercial cylindrical rating, so it is specified for multifamily, government, commercial, and healthcare openings. The trade-off versus PDQ's lever products is the ball knob, which is not an accessible operable part.
8) Should I use the PDQ SX knob lock or a PDQ lever lock like the GT?
Pick on trim and code. The SX116 is Grade 1 with a CQ ball knob, which suits back-of-house, storage, and dwelling-unit doors where knobs are permitted and cost matters. PDQ's GT and XGT are the Grade 1 lever products; choose those wherever an accessible route or lever spec applies, since knob trim will not pass ADA/ICC A117.1 operable-parts review.
9) Does the PDQ SX116 need to be ordered left or right hand?
No handing to specify. The SX116 is non-handed, so one lock serves either swing and you can stock a single part number for a building. That also means field-reversing is not a concern on a retrofit.
10) Is the PDQ SX116 acceptable for a federal or government job with domestic sourcing requirements?
The SX116 is TAA compliant, which is the sourcing test most federal and GSA procurement applies to door hardware. It is also Grade 1 per ANSI/BHMA A156.2 and UL/cUL 10C listed for 3 hours on single doors up to 4'0" x 8'0", the two other items a government spec reviewer usually wants confirmed.
11) Can I order the SX116 for a construction project and rekey it later without pulling the locks?
Yes, two ways. Order the SFIC prep with a brass construction core (SX116CQ630SFC) or a plastic construction core (SX116CQ630SFP) and swap to permanent 6- or 7-pin cores at turnover with a control key, no lock removal. Alternatively specify CMK construction master keying on a conventional cylinder, or 0-bitted with two blank keys if your locksmith pins on site.
12) What finish does the PDQ SX116 come in, and will it match my other stainless hardware?
One finish: 630 satin stainless steel (US32D) across the knob, roses, strikes, and faceplates. That is the standard satin stainless used on most commercial openings, so it matches 32D closers, hinges, and exit trim already in the building. All seven cylinder configurations are 630 only.
How fast can I get the PDQ SX116CQ630L delivered?
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Does the PDQ SX116CQ630L come with a warranty?
Absolutely. The PDQ SX116CQ630L is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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