TL644 Thumb Lock...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.87
TL644 Thumb Lock

TL644 Thumb Lock

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Model: TL644

In Stock (leaves warehouse same day if ordered before 3pm ET)

$9.87
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Free Keying on all locks
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The TL644 Thumb Lock is designed for all STI-EM Metal Cabinet models. The nut is not included and is not required for installation.

Manufacturer Resources

Product Specs

Notes:
Nut not included and is not required for installation
Product Category:
Parts & Accessories
Product Group:
Safety
Product Subgroup:
Locks & Security
Product Type:
TL644 Thumb Lock
Series:
STI-EM Metal Cabinet
Product Function:
Thumb lock for all STI-EM Metal Cabinet models
Product Details:
Thumb Lock
Department:
Safety

Safety Technology International TL644 – Frequently Asked Questions

1) Will the STI TL644 thumb lock fit any STI-EM metal cabinet?
Yes. The TL644 thumb lock is made for all STI-EM Metal Cabinet models, so you do not need to match it to a specific cabinet size or configuration within that family.
2) Does the TL644 thumb lock come with a mounting nut?
No nut is supplied with the TL644, and none is needed. The lock installs on an STI-EM metal cabinet without it, so there is nothing extra to source before you go out to the job.
3) I need to replace a broken lock on an STI metal protective cabinet. Is this the right part?
If the cabinet is an STI-EM Metal Cabinet, the TL644 is the thumb lock replacement for it. It is sold as a service part on its own, not as a complete cabinet, so you are buying just the locking hardware.
4) Is the TL644 a keyed lock or a thumb turn?
It is a thumb lock, operated by hand rather than with a key. That keeps access to the cabinet quick for maintenance or emergency use while still holding the door closed.
5) Are there different versions or finishes of the TL644 to choose from?
One configuration only. The TL644 ships as a single model with no size, handing, or finish choices to specify, so ordering across a fleet of STI-EM cabinets is straightforward.
How fast can I get the Safety Technology International TL644 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 Safety Technology International TL644 come with a warranty?
Absolutely. The Safety Technology International TL644 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 Safety Technology International TL644?
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 Safety Technology International TL644 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.
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