PDQ 35STHB 4 Ball Bearing Heav...
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$17.01
PDQ 35STHB 4 Ball Bearing Heavy Weight Hinge, Steel

PDQ 35STHB 4 Ball Bearing Heavy Weight Hinge, Steel

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Model: 35STHB4545626NRP
$17.01
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PDQ 35STHB 4 Ball Bearing Heavy Weight 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: A8111
  • 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: 35STHB

Available Options

  • Finish: 600 - Primed for Painting, 605 - Bright Brass, 613E - Dark Oxidized Satin Bronze, 619 - Satin Nickel, 622 - Flat Black, 626 - Satin Chrome Plated Steel (BHMA 652 / US26D)
  • Size: 4-1/2" x 4-1/2", 5" x 4-1/2"
  • Security Option: Non-Removable Pin (standard)

Each configuration has its own PDQ part number, for example 35STHB4545600NRP.

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:
35STHB
Commercial/Residential:
Commercial
ANSI/BHMA:
A8111
Warranty:
Five (5) year limited warranty
Subcategory:
Hinges
Tags:
pdq 35sthb, 35sthb pdq, 35sthb

PDQ 35STHB4545626NRP – Frequently Asked Questions

1) How many PDQ 35STHB hinges do I need for a 7 foot commercial door?
Three. The rule PDQ gives is two hinges for a door up to 5 feet tall, plus one more for each additional 30 inches of height or part of it. That puts three on a standard 7 foot door and four on an 8 foot door. The 35STHB is sold 3 per carton, so one carton covers a single 7 foot opening.
2) Is the PDQ 35STHB the right hinge for a door with a closer on it?
Yes. The 35STHB is a 4 ball bearing heavy weight hinge, and PDQ recommends ball bearing hinges on any door fitted with a closer. The hardened ball bearings between the knuckles cut friction so the door keeps swinging and latching under the closer's load, where a plain bearing hinge pivots metal on metal and is meant for low traffic.
3) Can I use the PDQ 35STHB steel hinge on an exterior door?
No, not where moisture or corrosion is a factor. The 35STHB is steel, which PDQ specifies for interior doors in non-corrosive environments. For exterior openings or corrosive environments, use the stainless steel version of the PDQ full mortise 35 series instead. Painted-steel finishes will not hold up the way stainless does on a weather-exposed opening.
4) Does the PDQ 35STHB come with a non-removable pin for an out-swinging door?
Yes, and it is standard, not an upcharge option. Every PDQ 2 and 4 ball bearing hinge ships with a non-removable pin, which is why each 35STHB part number ends in NRP (for example 35STHB4545626NRP). The pin cannot be tapped out while the door is closed, so the door cannot be lifted off its hinges from the outside. That is exactly what you want on an out-swing exterior or stair door.
5) Will the PDQ 35STHB work on a fire rated door opening?
The 35STHB conforms with NFPA 80-2010 Section 6.4.3.1, the fire door standard's hinge requirement, and the 35 series is certified to ANSI/BHMA A156.1-2013 on select models and sizes. Its ANSI/BHMA function is A8111. Note that UL listing on the PDQ hinge line applies to the SH spring hinges and EL electrified hinges, not to the 35STHB.
6) Will the PDQ 35STHB mortise into my existing hinge prep, and how much clearance does it leave?
It is a full mortise hinge (PDQ 35 series), so it drops into a standard mortised hinge pocket in the door edge and frame rabbet rather than needing a surface or half-mortise prep. The leaves are swaged, leaving 1/16 inch clearance between them with the door closed. Match the existing prep size, 4-1/2 x 4-1/2 inches or 5 x 4-1/2 inches, when you order.
7) What sizes does the PDQ 35STHB heavy weight hinge come in?
Two: 4-1/2 x 4-1/2 inches and 5 x 4-1/2 inches. The 4-1/2 inch square size is the common commercial size for a 1-3/4 inch door and is offered across all six finishes. The 5 x 4-1/2 inch size, which gives extra leaf width for thicker doors or deeper trim conditions, is offered in 626 satin chrome.
8) Do I need to buy screws separately for the PDQ 35STHB hinge?
No. Each 35STHB is packed with both fastener types: 12-24 x 1/2 inch flat head machine screws for hollow metal frames and tapped doors, and #12 x 1-1/4 inch flat head wood screws for wood doors and frames. You pick the set that matches your substrate, so the same hinge covers a hollow metal frame with a wood door.
9) Should I use a heavy weight 4 ball bearing hinge or a standard weight 2 ball bearing hinge?
It follows the door's weight and traffic. The 35STHB is the 4 ball bearing heavy weight option, for heavier doors and high-cycle openings, classrooms, corridors, healthcare and multifamily entries. PDQ's 2 ball bearing and plain bearing hinges in the same 35 full mortise series are the standard weight choices, with plain bearing reserved for low-traffic doors. If the door has a closer, stay on ball bearing.
10) Which finish of the PDQ 35STHB should I specify to match the rest of my building?
Six finishes are offered: 600 primed for painting, 605 bright brass, 613E dark oxidized satin bronze, 619 satin nickel, 622 flat black, and 626 satin chrome plated steel (BHMA 652 / US26D). 626 is the usual commercial standard and pairs with US26D lever and exit hardware in schools, healthcare and multifamily. Choose 600 when the hinges get painted out with the frame.
11) How do I write the PDQ part number for a 35STHB hinge?
Build it from model, size, finish and the NRP suffix. A 4-1/2 x 4-1/2 inch hinge in 600 primed finish is 35STHB4545600NRP; the same size in 622 flat black is 35STHB4545622NRP; the 5 x 4-1/2 inch in 626 satin chrome is 35STHB5045626NRP.
How fast can I get the PDQ 35STHB4545626NRP 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 35STHB4545626NRP come with a warranty?
Absolutely. The PDQ 35STHB4545626NRP 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 35STHB4545626NRP?
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
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