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. More on the way! Arriving by 05/29/2026.
Bulk Pricing
2 units $7.37 ea
5 units $6.37 ea
10 units $5.37 ea

SKU: PTR-656UN-HN

Free shipping not eligible Shipping charges will apply to this item.

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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