At a Glance

> Bracket Pattern: Confirm the mounting hole spacing on the bar bracket before ordering.
> Lock Placement: Verify the three-hole lock mounting pattern on the door or frame.
> Swing Clearance: Make sure the 180+ degree swivel range works with your door layout and surrounding hardware.
> Mounting Check: Confirm 3-7/8" on center for the smaller bracket holes and 4-7/8" on center for the larger holes.
> Lock Check: Verify the lock uses a three-hole mount with the top holes at 2-7/8" on center and the bottom hole 3-5/8" from the top holes.
Brand: RV Locks & More
SKU: SCB-B4-BLK

Before You Order

Match the part number, measurements and connection points that apply to your trailer.

Dimensions	Measure the original hardware and mounting centers.
Orientation	Confirm direction where applicable.
Hardware	Confirm keeper, hinge and latch compatibility.

Product Details

Trailer Door Hardware / Cambar System / Swivel Bar Locking Hardware

Black Powder Coated Aluminum Swivel Bar Cambar with Lock

Black powder coated aluminum swivel bar cambar with matching black cambar lock for cargo trailer, enclosed trailer, and utility trailer door applications.

Part Number: SCB-B4-BLK 180+ Degree Swivel / 4-Hole Bracket

Overview

This listing includes a black powder coated aluminum swivel bar cambar with a matching black cambar lock. Cambar assemblies like this are commonly used to secure cargo trailer, enclosed trailer, and utility trailer doors. The swivel bar design allows the handle to rotate over 180 degrees for convenient operation while maintaining a strong and reliable locking system for trailer doors and storage compartments.

R&P Service Insight

Trailer door hardware is one of those categories where the part can look right in a photo and still miss the trailer once you get to the mounting pattern. Matching the bracket and lock dimensions matters just as much as choosing the finish.

Bracket Pattern: Confirm the mounting hole spacing on the bar bracket before ordering.
Lock Placement: Verify the three-hole lock mounting pattern on the door or frame.
Swing Clearance: Make sure the 180+ degree swivel range works with your door layout and surrounding hardware.

R&P Knowledge Hub

Compatibility: Commonly used for cargo trailer, enclosed trailer, and utility trailer door security applications.

Vehicle / System Fit: Trailer side doors, rear doors, and storage compartment doors using a cambar-style latching setup.

Installation Notes: Verify bracket size, hole spacing, lock mounting pattern, and door clearance before installation.

Performance Insight: The aluminum swivel bar construction helps keep the assembly lightweight, while the black powder coated finish supports corrosion resistance and a clean finished look.

R&P Repair Insight

Before replacing a cambar setup, check the existing bracket footprint and lock position carefully. Many trailer door hardware layouts are close, but not identical, and a small difference in mounting can create a frustrating install.

Mounting Check: Confirm 3-7/8" on center for the smaller bracket holes and 4-7/8" on center for the larger holes.
Lock Check: Verify the lock uses a three-hole mount with the top holes at 2-7/8" on center and the bottom hole 3-5/8" from the top holes.
Door Check: Always confirm door compatibility and available swing space before ordering.

Features

Aluminum Swivel Bar Construction

Durable aluminum cambar assembly built for trailer door security applications.

Black Powder Coated Finish

Black finish helps provide corrosion resistance and a clean, finished appearance.

180+ Degree Swivel Range

Swivel bar design allows broad handle movement for convenient opening and closing.

Matching Lock Included

Includes a spring-assisted self-latching cambar lock with two keyed-alike keys.

Specifications

Specification	Detail
Part Number	SCB-B4-BLK
Product Type	Swivel Bar Cambar with Lock
Application	Trailer door security / cambar latch setup
Material / Finish	Aluminum bar with black powder coated finish
Mounting Bracket Size	5-3/4" x 1-3/8"
Cambar Arm Size	16" overall length, 1-1/4" wide
Mounting Hole Spacing	3-7/8" on center (smaller holes), 4-7/8" on center (larger holes)
Lock Dimensions	6" x 3-9/16"

Fitment / Application

Category	Details
Vehicle / System	Cargo trailer, enclosed trailer, and utility trailer door systems
Primary Fit	Doors using a cambar-style latch with a four-hole bracket and matching lock setup
Secondary Fit	Storage compartments or similar door applications where the mounting pattern and clearance match
Notes	Verify mounting dimensions, lock mounting pattern, and door compatibility prior to installation.

Included Components

Quantity	Item
1	Black powder coated aluminum swivel bar cambar
1	Black cambar lock
1 set	Two keys, keyed alike
1	Four-hole mounting bracket design on cambar assembly
Included	Spring-assisted self-latching lock assembly

Verify mounting dimensions and door compatibility prior to installation. Always confirm measurements on your trailer door before ordering.

Search More Cambar Locks

black powder coated aluminum swivel bar cambar with lock, SCB-B4-BLK cambar lock, trailer door cambar, enclosed trailer door lock bar, utility trailer cambar assembly, black cambar lock with keys, trailer door swivel bar latch, cargo trailer cambar hardware, four hole cambar bracket, trailer door security hardware

Black Swivel Cam Bar Trailer Latch Handle Door Cambar Cargo W/ Black Lock (SCB-B4-BLK)