ESP Threaded Hex Nut

Sku: PTR-656UN-HN
Threaded Hex Nut main image ESP PTR-656UN-HN Gallery Photo ESP PTR-656 Mounting Hole ESP PTR-656 Diagram
Threaded Hex Nut main image
Threaded Hex Nut Mailbox Lock w/ 2 Keys Details
Universal Mailbox Lock Package with Hex Nut. HL1 (Hudson Lock Replacement). 1 lock (Non Dust Shuttered) w/ 2 keys, 5 OEM replacement cams. Key rotates counter-clockwise 90 degrees. Key removable in locked position only. NOTE: Extra keys may only be purchased with the purchase of a new lock.

Price: $8.37

24 in Stock.
Bulk Pricing
2 units $7.37 ea
5 units $6.37 ea
10 units $5.37 ea

SKU: PTR-656UN-HN

Extra Keys $7.17 each

To add extra keys, PTR-656UN-HN must be in the cart.

SKU: PTR-656UN-HN
Product Description

ESP is the only US manufacturer that offers threaded cylinders mounted with a Hex Nut. This feature insures Higher Security and accommodates any door thickness. Each lock is keyed differently. 

Use HL1 Key Blank for Duplicates


Secure your mailbox or storage compartment with the ESP threaded hex nut mailbox lock with 2 keys, available at EasyKeys.com. This durable replacement mailbox lock features a threaded body and hex nut for quick, secure installation on residential and commercial mailboxes, parcel boxes, and enclosures. Designed for smooth operation and reliable security, the lock includes two matching keys for immediate use. Ideal for homeowners, property managers, and maintenance professionals replacing worn or damaged mailbox locks. Built for long-lasting performance and easy installation, this ESP mailbox lock delivers dependable access control. Fast shipping and trusted quality guaranteed.

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Apr 08, 2026
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“All goes good every time I order from you.”
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Terri
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“Easy to use.”
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“It was fast, easy and great. ”
Paula
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“User friendly. Good product. This is my second order and I am highly satisfied!”
Susan
Apr 07, 2026
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“It was fast & easy to order duplicate keys on the website ”
Kaitlyn
Apr 06, 2026
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“no”
Waynetta
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Ray
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Edward
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James
Apr 06, 2026
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“Easy to look up keys ,excellent service provided”
Ben
Apr 06, 2026
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“Found the key I was looking for easy enough. Just waiting to get it to see if it works. ”
George
Apr 05, 2026
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“Worked well. No issues. ”
Kenny
Apr 05, 2026
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“Easy to use”
Kory
Apr 05, 2026
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“Very easy to find the key that I needed ”
Mathew
Apr 04, 2026
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“Easy ordering”