You may also like
PDQ 639156 Surface Vertical Rod Bottom Latchbolt
Replacement Parts for PDQ 6300 and 6400 Series Exit Devices
PDQ part number 639156: Surface 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: 639156
Available Options
- Finish: 605 - Bright Brass, 606 - Satin Brass, 613E - Dark Oxidized Satin Bronze, 622 - Flat Black, 625 - Bright Chrome, 626 - Satin Chrome, 630 - Satin Stainless Steel
Each configuration has its own PDQ part number, for example 639156605.
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:
- 639156
- Commercial/Residential:
- Commercial
- Tags:
- pdq 639156, 639156 pdq, 639156
- Subcategory:
- Parts and Accessories
- Parts and Accessories Type:
- Latch or Bolt
- Series:
- 6300 Series
PDQ 639156626 – Frequently Asked Questions
1) What does the PDQ 639156 part replace on an exit device?
639156 is the bottom latchbolt for a PDQ surface vertical rod exit device, the latch that engages the floor strike at the bottom of the door. It's a genuine PDQ service part for 6300 Series wide stile and 6400 Series narrow stile devices, so you can replace a worn or damaged bottom latch without pulling the whole device off the door.
2) Will the PDQ 639156 bottom latchbolt work on a rim exit device?
No. 639156 is specific to surface vertical rod configurations, which latch at the head and at the threshold. A rim device latches only into a strike on the frame or mullion and has no bottom latchbolt, so this part has nothing to mount to. PDQ's parts range covers rim, surface vertical rod, concealed vertical rod and mortise configurations separately, so match the part to the device type you actually have.
3) I manage a building with PDQ exit devices on the stairwell doors. Can I just swap the bottom latch instead of replacing the device?
Yes, that's exactly what this part is for. PDQ sells 639156 as a factory service part so a bottom latchbolt that's worn, bent or no longer catching the floor strike can be changed out on an installed 6300 or 6400 Series device. The same parts program also covers head chassis assemblies, rods and connectors, push bars, covers and end caps, strikes and shims, so a single failed component doesn't force a full device replacement.
4) What finishes does the PDQ 639156 bottom latchbolt come in, and how do I order the right one?
Seven finishes: 605 bright brass, 606 satin brass, 613E dark oxidized satin bronze, 622 flat black, 625 bright chrome, 626 satin chrome and 630 satin stainless steel. The finish code is appended to the base part number, so bright brass is ordered as 639156605 and satin stainless as 639156630. Match the code stamped on or specified for the existing device so the replacement latch matches the rest of the hardware on the opening.
5) Does the PDQ 639156 bottom latchbolt fit both wide stile and narrow stile devices?
PDQ lists 639156 as a service part for both the 6300 Series wide stile and 6400 Series narrow stile exit devices, in surface vertical rod form. The part itself is catalogued under the 6300 Series. If your device is a 6400 narrow stile unit, verify the part number against the device's parts breakdown before ordering, since narrow stile hardware is sized to the thinner stile of an aluminum storefront door.
6) What else might I need along with a replacement bottom latchbolt?
If the bottom latch stopped engaging, the floor strike or the vertical rod is often part of the problem. PDQ's parts program for the 6300 and 6400 Series includes rods and connectors, strikes and shims, drill guides and screwpacks, so a bent rod or a worn strike can be replaced at the same time. There are also conversion kits that add cylinder dogging or an alarm to an installed device if you're upgrading while the device is off the door.
7) Is the PDQ 639156 latchbolt a commercial-duty part?
Yes. It's catalogued for commercial door hardware use, which is where surface vertical rod exit devices live, on stairwells, rear exits and pairs of doors. The 6300 and 6400 Series devices it services are offered with panic rated and fire rated head chassis, so if your opening is a fire door, confirm the head chassis on the device matches that requirement when you order service parts.
How fast can I get the PDQ 639156626 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 639156626 come with a warranty?
Absolutely. The PDQ 639156626 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 639156626?
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 639156626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.