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Internet # 315426389

Model # MP4532

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9-Cam, H1 Keyway, Mail Box Lock, Counter Clockwise Rotation

$7.45
  • Diecast construction with a nickel finish
  • Includes 5 cams, brass pins and spring steel locking clip
  • Rotates 90 in counterclockwise direction
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Product Details

About This Product

This 5-pin tumbler lock is constructed of diecast and comes with a nickel plated face and dust cover. A security feature of this lock prevents the key from being removed when in the unlocked position. This feature prevents forgetting the key in the lock, while at the same time ensuring the mailbox is locked every time. It includes a total of 5 zinc plated steel cams, brass pins, a spring steel locking clip, a dust cover to protect the internal pins and springs from dust and moisture in exposed exterior conditions, and 2 keys. To unlock this mailbox lock, the key must rotate 90° in a counter clockwise direction.

Highlights

  • This durable 5‑pin tumbler mailbox lock uses a Hudson keyway and provides smooth, reliable counter‑clockwise operation
  • A diecast body paired with a spring‑steel locking clip delivers long‑lasting strength for everyday mailbox security
  • The nickel‑plated face offers corrosion resistance and a clean, professional appearance that suits most mailboxes
  • Its universal replacement style can help reduce the need to stock multiple individual lock types
  • Installation requires only an adjustable wrench, and users should confirm fitment by comparing their mailbox to the provided line‑art dimensions
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Product Information

Internet # 315426389

Model # MP4532

Additional Resources

Shop All Prime-Line

Specifications

Dimensions: H 2.8 in, W 2.9 in, D 1 in

Dimensions

Product Depth (in.)

1 in

Product Height (in.)

2.8 in

Product Width (in.)

2.9 in

Details

Accessory Type

Lock

Features

No Additional Features

Hardware Color Family

Nickel

Included

Mounting Hardware

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse.

Questions & Answers

Key retention in one position? Key removal in other position? Keyed alike?
ByMar 18, 2026
1 Answer | 
Answer This Question

Thank you for your inquiry regarding this item from Prime-Line Products. The key can only be removed in locked position and mailbox locks are not available in keyed alike models.

By|Mar 20, 2026


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    Product Snapshot

    Ideal for securing mailboxes with a 9-cam, H1 keyway lock featuring counter clockwise rotation and included mounting hardware.
    Ideal for replacing damaged mailbox locks, featuring diecast construction, chrome finish, and 5 cams for enhanced security.
    Ideal for homeowners needing a reliable replacement mailbox lock with 5 cams and easy installation.
    Ideal for homeowners needing a basic mailbox lock with steel construction and a brass-plated finish for added durability.

    Security Level

    Prevents key removal when unlocked

    Keyway Type

    H1
    National 14-keyway
    Hudson 1003M
    3/16 in. offset

    Finish Quality

    Nickel plated face and dust cover
    Chrome plated face
    Nickel-plated
    Brass plated

    Cam Options

    5 zinc plated steel cams
    5-zinc plated steel cams
    5 cams

    Number of Keys