B-Line Eaton series lock latch...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$124.20
$88.20
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B-Line Eaton series lock latch and handle, 1, Security latch provide security and control access, Enclosure security latch inserts, Locks, latches, i

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Model: 3MT1DBLK

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

$124.20
$88.20
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Eaton B-Line series lock latch and handle, NEMA 1, Security latch provide security and control access, Enclosure security latch inserts, Locks, latches, inserts, and handles inserts, 3mm double bit latch insert

Manufacturer Resources

Product Specs

Application:
Security latch provide security and control access
Certifications:
UL Listed
Degree Of Protection:
NEMA 1
Product Category:
Locks, latches, inserts, & handles inserts
Product Height:
3 in
Product Length Depth:
3 in
Product Weight:
.142 lb
Product Width:
1 in
Special Features:
Enclosure security latch inserts
Department:
Electrical
Product Type:
Triangle flush latch
Product Details:
Triangle flush latch
Product Length:
3 in

B-LINE 3MT1DBLK – Frequently Asked Questions

1) What key or tool opens the Eaton B-Line 3MT1DBLK latch insert?
It's a 3mm double bit insert, so it takes a 3mm double bit key or a multi-tool with a 3mm double bit bit. No cylinder, no standard keyway, so it won't key into a building master system. If your crew already carries a universal cabinet key with a 3mm double bit blade, that's the one.
2) Is the B-Line triangle flush latch suitable for an outdoor or washdown enclosure?
No. The 3MT1DBLK is rated NEMA 1, which is indoor use for basic protection against contact and falling dirt only. For a wet, dusty, or outdoor enclosure you need a latch insert rated to the enclosure's NEMA type, such as NEMA 3R, 4, or 12, with a gasketed insert.
3) What's the difference between a triangle flush latch and a padlockable enclosure latch?
A triangle flush latch like the 3MT1DBLK stays flush in the door and opens with a keyed insert, so there's nothing projecting and nothing to cut off. A padlockable hasp accepts any padlock, which suits lockout/tagout and lets each tech carry their own lock. Pick the flush keyed insert when you want one common key across a fleet of cabinets and a clean door face; pick the hasp when the requirement is LOTO.
How fast can I get the B-LINE 3MT1DBLK 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 B-LINE 3MT1DBLK come with a warranty?
Absolutely. The B-LINE 3MT1DBLK 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 B-LINE 3MT1DBLK?
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 B-LINE 3MT1DBLK 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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