Signature Keystone Post Mount Locking Mailbox
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- With the Gaines Signature Keystone Locking Mailbox collection it’s easy to get everything you want.
- Made from cast aluminum and covered with a powder coat pain finish that will never rust, you can count on these locking mailboxes to be low-to-no maintenance.
- Available in 6 colors and 4 accent finishes creating a unique mailbox designed just for your home.
- Raised US Mail letters cast a shadow and add dimension to the mailbox front.
- Letters and Flags are made of solid brass or aluminum and come in Verde Brass, Satin Nickel, Polish Brass and Antique Bronze finishes.
- Personalize your mailbox by adding your street name and address to the side of the mailbox in 7 year vinyl letters that match the color of the locking mailbox’s accents.
- Need an address plaque for your house? Check out our selection of Gaines HouseMark address plaques which coordinate with our Signature Keystone Post Mount Locking Mailbox collection.
- Each USPS approved locking mailbox comes with a locking insert and 2 keys. Order yours today!
- See more Locking Mailboxes.
Finishes and Accents
Metallic Bronze and Polished Brass
GMMKSSIG4A-MBB and GMZMKSLOCKING
Metallic Bronze and Antique Bronze
GMMKSSIG20A-MBZ and GMZMKSLOCKING
Metallic Bronze and Satin Nickel
GMMKSSIG24A-MBS and GMZMKSLOCKING
Black and Antique Bronze
GMMKSSIG21A-BLZ and GMZMKSLOCKING
Black and Polished Brass
GMMKSSIG7A-BLB and GMZMKSLOCKING
Black and Satin Nickel
GMMKSSIG25A-BLS and GMZMKSLOCKING
Black and Black
GMMKSSIG19A-BL and GMZMKSLOCKING
White and Antique Bronze
GMMKSSIG22A-WHZ and GMZMKSLOCKING
White and Polished Brass
GMMKSSIG1A-WHB and GMZMKSLOCKING
White and Satin Nickel
GMMKSSIG23A-WHS and GMZMKSLOCKING
White and White
GMMKSSIG15A-WH and GMZMKSLOCKING
Almond and Antique Bronze
GMKSSIG26A-AMZ and GMZMKSLOCKING
Almond and Polished Brass
GMMKSSIG3A-AMB and GMZMKSLOCKING
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- Mailbox Item Number: GMMKSSIG
- Locking Insert Item Number: GMZMKSLOCKING
- Includes: Mailbox, Locking Insert with 2 Keys
- Manufacturer: Gaines Manufacturing
- Shipping Weight: 18 lbs.
- Locking: Locking mailbox.