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PDQ
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$338.43
PDQ 35STBB 2 Ball Bearing Hinge, Steel
Commercial Full Mortise Hinges in Steel and Stainless Steel
PDQ commercial full mortise hinges carry the weight of a commercial door and keep it swinging and latching under daily traffic. The range covers plain bearing and 2 ball bearing standard weight hinges, 4 ball bearing heavy weight hinges, and self-closing spring hinges, in steel and stainless steel.
Hinge weight and bearing type follow the door's weight and traffic. Steel suits interior doors in non-corrosive environments, while stainless steel suits exterior doors and corrosive environments. Every PDQ hinge conforms to NFPA 80 and carries a 5-year limited warranty.
Key Features
- Full mortise, swaged design with 1/16" clearance between the leaves when the door is closed
- Plain bearing, 2 ball bearing, 4 ball bearing heavy weight and spring hinge styles
- Non-removable pin standard on every 2 and 4 ball bearing hinge
- Steel for interior, non-corrosive applications; stainless steel for exterior and corrosive environments
- Packed with 12-24 x 1/2" flat head machine screws and #12 x 1-1/4" flat head wood screws
- Conforms with NFPA 80; select models and sizes certified to ANSI/BHMA A156.1; SH spring hinges are UL listed
- 5-year limited warranty
Technical Specifications
- ANSI/BHMA Function: A8112
- Warranty: Five (5) year limited warranty
- ANSI Standard: A156.1
- Fasteners: All hinges packed with Machine Screws (12-24 x 1/2" FHMS) and Wood Screws (12 x 1-1/4" FHWS)
- Packaging: 3 per carton (plain, 2 ball bearing, 4 ball bearing, spring); 1 per carton (electrified); 48 per master carton (plain, 2 BB, 4 BB)
- Materials: Steel: interior doors, non-corrosive environments. Stainless steel: exterior doors, corrosive environments
- Mortise: Full mortise (series 35)
- Manufacturer Part Number: 35STBB
Available Options
- Finish: 626 - Satin Chrome Plated Steel (BHMA 652 / US26D), 600 - Primed for Painting, 605 - Bright Brass, 613E - Dark Oxidized Satin Bronze, 619 - Satin Nickel, 622 - Flat Black
- Size: 4-1/2" x 4", 4-1/2" x 4-1/2"
- Security Option: Non-Removable Pin (standard)
Each configuration has its own PDQ part number, for example 35STBB4540626NRP.
Certifications
- Conforms with NFPA 80-2010 Section 6.4.3.1
- certified to ANSI/BHMA A156.1-2013 (select models and sizes)
- UL listed: SH Series Spring Hinges and EL Series Electrified Hinges
Typical Applications
- Education buildings
- Healthcare facilities
- Multifamily buildings
Frequently Asked Questions
How many hinges does a commercial door need?
A door up to 5' tall needs two hinges, plus one more for each additional 30" of height or part of it. That means three hinges on a standard 7' door and four on an 8' door.
What is the difference between ball bearing and plain bearing hinges?
Ball bearing hinges have hardened steel ball bearings between the knuckles, so the door turns with less friction and the hinge wears less. Plain bearing hinges pivot metal on metal with no bearings and suit low-traffic doors. PDQ recommends ball bearing hinges on any door with a closer.
What is a non-removable pin hinge?
A non-removable pin (NRP) hinge has a pin that cannot be tapped out while the door is closed, so the door cannot be lifted off by pulling the pins. It should be specified on out-swinging doors. PDQ includes a non-removable pin on every 2 and 4 ball bearing hinge.
Manufacturer Resources
Product Specs
- Department:
- Door Hardware
- Product Group:
- Hinges
- Product Subgroup:
- Butt Hinges
- Product Type:
- Hinge
- Product Category:
- Hinges
- Product Model:
- 35STBB
- Commercial/Residential:
- Commercial
- ANSI/BHMA:
- A8112
- Warranty:
- Five (5) year limited warranty
- Subcategory:
- Hinges
- Tags:
- pdq 35stbb, 35stbb pdq, 35stbb
PDQ 35STBB4545626NRP – Frequently Asked Questions
1) How many PDQ 35STBB hinges do I need for a standard 7 foot commercial door?
Three. The rule PDQ publishes is two hinges for a door up to 5 feet tall, plus one more for every additional 30 inches of height or fraction of it. A standard 7 foot door takes three, and an 8 foot door takes four. Since the 35STBB is packed 3 per carton, one carton covers a single 7 foot opening.
2) Is the PDQ 35STBB steel hinge OK for an exterior door?
No. The steel 35STBB is specified for interior doors in non-corrosive environments. For an exterior opening or a corrosive environment (coastal, pool, kitchen, wash-down), go to the stainless steel version of the PDQ 35 full mortise series instead.
3) Will the PDQ 35STBB fit my existing hinge cutouts?
It depends on the mortise size you already have. The 35STBB is a full mortise, swaged hinge offered in 4-1/2 x 4 inch and 4-1/2 x 4-1/2 inch. The 4-1/2 x 4-1/2 is the usual commercial prep on a 1-3/4 inch door; 4-1/2 x 4 shows up where the leaf width was reduced. Measure the existing leaf before ordering, because the two are not interchangeable in the same frame cutout.
4) Do I have to order the non-removable pin option separately on the PDQ 35STBB?
No, NRP is standard. PDQ includes a non-removable pin on every 2 and 4 ball bearing hinge, and each 35STBB part number carries the NRP suffix, for example 35STBB4545626NRP. That matters on out-swinging doors, where the hinge barrel is on the exterior and the pin could otherwise be tapped out to lift the door off.
5) Can I use a 2 ball bearing hinge on a door with a closer, or do I need heavy weight?
A door with a closer needs ball bearing, and PDQ says so outright; plain bearing hinges pivot metal on metal and belong on low-traffic doors without closers. The 35STBB is a standard weight 2 ball bearing hinge, which covers normal commercial doors under closer duty. For a heavy or high-frequency door, step up to the 4 ball bearing heavy weight hinge in the same PDQ 35 full mortise series.
6) Can the PDQ 35STBB go on a fire rated door?
Every PDQ hinge conforms with NFPA 80, specifically NFPA 80-2010 Section 6.4.3.1, which is the hinge requirement for fire door assemblies. Select models and sizes are also certified to ANSI/BHMA A156.1-2013, and the 35STBB carries ANSI/BHMA function A8112. Note that the UL listings in the series apply to the SH spring hinges and EL electrified hinges, not to the 35STBB.
7) Do PDQ 35STBB hinges come with screws, or do I need to buy fasteners?
Screws are in the box. Each hinge is packed with 12-24 x 1/2 inch flat head machine screws for hollow metal frames and #12 x 1-1/4 inch flat head wood screws for wood doors and frames, so you can hang either substrate without a separate fastener order.
8) What finishes does the PDQ 35STBB come in, and which one matches satin chrome hardware?
Six: 626 satin chrome plated steel (BHMA 652 / US26D), 600 primed for painting, 605 bright brass, 613E dark oxidized satin bronze, 619 satin nickel, and 622 flat black. For openings standardized on US26D satin chrome levers and closers, 626 is the match. 600 is the one to pick when the hinges get painted out with the frame.
9) Is the 4-1/2 x 4 inch size available in all six PDQ 35STBB finishes?
The 4-1/2 x 4 inch 35STBB is offered in 626 satin chrome, as part number 35STBB4540626NRP. The other five finishes (600, 605, 613E, 619, 622) are the 4-1/2 x 4-1/2 inch size. If you are standardizing a building on one finish, confirm the size you need is offered in it before you spec the whole job.
10) How do I read a PDQ 35STBB part number when ordering?
The number stacks model, size, finish and option. In 35STBB4545626NRP: 35STBB is the steel 2 ball bearing full mortise hinge, 4545 is the 4-1/2 x 4-1/2 inch size, 626 is satin chrome, NRP is the non-removable pin. A 4-1/2 x 4 in the same finish reads 35STBB4540626NRP. Each configuration is its own PDQ part number, so give the full string on a purchase order.
11) How much clearance is there between the leaves of a PDQ 35 full mortise hinge when the door is closed?
1/16 inch. The 35 series is swaged so the two leaves sit 1/16 inch apart with the door shut, which is the standard full mortise gap and what the frame and door prep are cut to. That keeps the hinge-side gap consistent for closer and gasket work.
12) We buy hinges by the pallet for apartment turns. How is the PDQ 35STBB packed?
Three hinges per carton, which is one 7 foot door per carton, and 48 per master carton for the plain bearing, 2 ball bearing and 4 ball bearing hinges. Electrified hinges in the series are packed 1 per carton. The 35STBB is a commercial hinge, typically specified in education, healthcare and multifamily buildings.
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Absolutely. The PDQ 35STBB4545626NRP is backed by a manufacturer’s warranty.
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