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PDQ 639155 Concealed Vertical Rod Bottom Latchbolt
Replacement Parts for PDQ 6300 and 6400 Series Exit Devices
PDQ part number 639155: Concealed Vertical Rod Bottom Latchbolt. A genuine PDQ part.
These are factory replacement and conversion parts for PDQ 6300 Series wide stile and 6400 Series narrow stile exit devices, covering rim, surface vertical rod, concealed vertical rod and mortise configurations. The range includes head chassis assemblies, latchbolts, rods and connectors, push bars, covers and end caps, strikes and shims, dogging and alarm conversion kits, screwpacks and signal switches, so an existing device can be serviced or upgraded without replacing the whole unit.
Key Features
- Genuine PDQ parts for 6300 Series wide stile and 6400 Series narrow stile exit devices
- Covers rim, surface vertical rod, concealed vertical rod and mortise device configurations
- Panic rated and fire rated head chassis available for replacement
- Conversion kits add cylinder dogging or an alarm to an installed device
- Strikes, shims, drill guides and screwpacks for installation and adjustment
Technical Specifications
- Manufacturer Part Number: 639155
Manufacturer Resources
Product Specs
- Department:
- Door Hardware
- Product Group:
- Parts and Accessories
- Product Subgroup:
- Replacement Parts
- Product Type:
- Replacement Part
- Product Category:
- Parts and Accessories
- Product Model:
- 639155
- Commercial/Residential:
- Commercial
- Tags:
- pdq 639155, 639155 pdq, 639155
- Subcategory:
- Parts and Accessories
- Parts and Accessories Type:
- Latch or Bolt
- Series:
- 6300 Series
PDQ 639155 – Frequently Asked Questions
1) Will the PDQ 639155 bottom latchbolt work on a surface vertical rod or rim exit device?
No. 639155 is specific to the concealed vertical rod configuration, where the rods run inside the door. Rim devices latch into a strike on the frame and have no bottom bolt at all, and surface vertical rod devices use their own bolt assemblies. PDQ catalogs separate replacement latchbolts, rods and connectors for the rim, surface vertical rod and mortise configurations of the 6300 and 6400 Series.
2) My PDQ exit device won't latch at the bottom of the door. Is the bottom latchbolt the part I need?
If the device is a PDQ 6300 or 6400 Series concealed vertical rod unit and the bottom bolt is worn, bent, or no longer dropping into the floor strike, 639155 is the correct replacement bottom latchbolt. Worth checking the rod and connector and the bottom strike at the same time, since PDQ also sells those as separate service parts for the same devices. If the device is a surface vertical rod rather than concealed, this bolt is not the right part.
3) Can I use the PDQ 639155 latchbolt on a fire rated opening?
639155 is a bolt component, and whether the opening keeps its rating depends on the device it goes into. PDQ offers both panic rated and fire rated head chassis for the 6300 and 6400 Series, so identify which chassis is on your door before servicing. On a fire rated concealed vertical rod device, replace with genuine PDQ parts only, and do not convert the device to less bottom rod, since fire devices require the bottom bolt to latch.
4) Do I have to replace the whole PDQ exit device if the bottom bolt is bad?
No. PDQ supports the 6300 and 6400 Series with factory service parts, so a failed bottom latchbolt can be swapped on its own using 639155. The same program covers head chassis assemblies, rods and connectors, push bars, covers and end caps, strikes and shims, screwpacks and signal switches, plus conversion kits that add cylinder dogging or an alarm to a device already hung on the door. For a property manager standardizing on PDQ across a building, that means repairing in place instead of rehanging hardware.
How fast can I get the PDQ 639155 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 639155 come with a warranty?
Absolutely. The PDQ 639155 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 639155?
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selection,
installation tips, and troubleshooting. Contact Us
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