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Roadside Locking Mailbox

Made entirely of aluminum, National Mailboxes U.S.P.S. approved H4300 series roadside residential mailboxes feature both a front and rear access locking door. Available in a black, green, silver or white powder coated finish.

  • Each unit includes an outgoing mail tray, a lock with two keys on each door (keyed alike) and an adjustable red signal flag. Mail is deposited through a non-locking access panel on the front
  • Roadside mailboxes are approved for U.S.P.S. curbside mail delivery.
  • Unit size: 12 1/2"W x 13 5/8"H x 18 1/4"D (Installed height w/ pedestal: 45.5")
  • Mail deposit opening size: 10"W x 1 3/4"H
  • Includes outgoing mail tray
  • For a larger version of this product, see mail chests.

Contact our customer service center for more product information at 1-800-676-5161

  USPS Approved

Learn More About 4300 Series Roadside Mailboxes

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Roadside Locking Mailbox - H4325
Roadside Locking Mailbox are a secure way to ensure that your mail will be safe and sound. These..
Wholesale Price:
$123.50
Newspaper Holder for Roadside Mailboxes - H4315
Newspaper Holder for Roadside Mailboxes - Attaches between the mailbox and the pedestal Unit Siz..
Wholesale Price:
$58.50
In-Ground Mounted Pedestal for Roadside Mailboxes - H4385
In-Ground Mounted Pedestal for Roadside Mailboxes Unit Size: 3-1/2"W x 3-1/2"D x 48"HTop: 6"W x 12..
Wholesale Price:
$96.50
Bolt Mounted Pedestal for Roadside Mailboxes - H4365
Bolt Mounted Pedestal for Roadside Mailboxes 3-1/2"W x 3-1/2"D x 32"Htop & base: 6"W x 12"DColor..
Wholesale Price:
$96.50
Deluxe Post For 1 Roadside Mailbox - H4370
Single sided deluxe in-ground post for mounting 1 Roadside Mailbox. Size: 25"W x 81"H x 4"D Weig..
Wholesale Price:
$146.50
Deluxe Post For 2 Roadside Mailboxes - H4372
Double sided deluxe in-ground post for mounting 2 Roadside Mailboxes. Size: 35"W x 81"H x 4"D We..
Wholesale Price:
$171.50
Deluxe Post For 3 Roadside Mailboxes - H4373
Double sided deluxe in-ground post for mounting 3 Roadside Mailboxes. Size: 49"W x 81"H x 4"D We..
Wholesale Price:
$196.50
Deluxe Post For 4 Roadside Mailboxes - H4374
Double sided deluxe in-ground post for mounting 4 Roadside Mailboxes. Size: 63"W x 81"H x 4"D We..
Wholesale Price:
$221.50
Two Wide Spreader Plate for Roadside Mailboxes - H4382
Two Wide Spreader Plate for Roadside Mailboxes - Mounts 2 mailboxes to one pedestal Size: 34"W x ..
Wholesale Price:
$58.50
Three Wide Spreader Plate for Roadside Mailboxes - H4383
Three Wide Spreader Plate for Roadside Mailboxes - 3 mailboxes to one pedestal Size: 55"W x 1"H x..
Wholesale Price:
$68.50
Four Wide Spreader Plate for Roadside Mailboxes - H4384
Four Wide Spreader Plate for Roadside Mailboxes - Mounts 4 Roadside Mailboxes to one pedestal Siz..
Wholesale Price:
$88.50
Pedestal Mounting Kit - H4394
Pedestal mounting kit for Mail Package Drop mailboxesIncludes J-bolts, nuts, and washersFor new ceme..
Wholesale Price:
$24.50
Standard Replacement Lock Set - H4390
Standard replacement lock set includes 2 locks keyed alikeFor Mail Package Drop mailboxesIncludes 2 ..
Wholesale Price:
$19.50
Non-locking Thumb Latch - H4388
Optional Non-Locking Thumb Latch..
Wholesale Price:
$9.95
Replacement Flag - H4316
Replacement flagSize: 2-3/4"W x 8"H..
Wholesale Price:
$9.95
Custom Engraved Placards - H4367
Custom Engraved PlacardsSize: 8-1/2"W x 2"H ..
Wholesale Price:
$14.95