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Prime-Line Chrome Steel Counter Clockwise Mailbox Lock

Upgrade your curbside security with the Prime-Line Chrome Steel Counter Clockwise Mailbox Lock. This durable, clip-on lock is designed for Bommer-compatible mailboxes and offers a…

Prime-Line MPN S4138 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $8.99. Our online price is $9.59.
$9.59
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About Product Overview

Upgrade your curbside security with the Prime-Line Chrome Steel Counter Clockwise Mailbox Lock. This durable, clip-on lock is designed for Bommer-compatible mailboxes and offers a reliable counter-clockwise rotation for quick access and enhanced protection for your mail and packages.

Key features

  • Durable chrome steel construction resists rust and the elements, keeping your lock looking sharp year after year.
  • 5-pin tumbler for stronger resistance to picking and longer-lasting performance compared to standard 4-pin designs.
  • Clip-on installation provides tool-free, straightforward replacement on compatible Bommer mailboxes.
  • Includes 2 keys so you have a spare on hand and never get locked out.
  • Compact dimensions: approx. 3.8 in W x 4.9 in H x 1.3 in D—built to fit a variety of mailbox housings.
  • Counter-clockwise rotation ensures intuitive operation for secure, reliable access.

This Prime-Line mailbox lock is ideal for homeowners, landlords, or property managers looking to replace a worn or jammed lock without disassembly headaches. If your Bommer mailbox unit relies on a clip-on, rotating cylinder, this Chrome Steel Lock offers a secure, weather-ready upgrade that restores quick mail access while keeping unauthorized access at bay.

Why choose this over basic locks

The combination of a 5-pin cylinder, chrome steel construction, and a clip-on design means you get stronger protection, easier installation, and long-term durability in a single part. It’s a practical upgrade for rental properties with shared mail areas or for anyone who wants a reliable, low-maintenance replacement.

Care and maintenance: keep the lock dry; wipe with a clean cloth; apply a dry graphite lubricant periodically to maintain smooth operation in harsh weather. For best results, test the lock after installation and keep the keys in a safe place.

The Details Specifications

Brand Prime-Line
SKU 5269485
UPC 049793041388
Unit 0
Case Pack Quantity 24 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 1 × 4 × 5
Weight 0 lbs
Cubic Feet 0.01134 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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