BB-6 Outside Hookup Bottom Brackets – 3" Track – 11 Gauge – Pair

The BB-6 Outside Hookup Bottom Bracket Set is a heavy-duty bottom fixture designed for commercial and industrial sectional garage doors using 3-inch track.

Constructed from 11-gauge steel, these brackets mount at the lower corners of the door and provide the attachment point for the garage door lift cables. The outside-hookup design positions the cable connection for compatible commercial door configurations.

The BB-6 brackets are supplied as a matched pair for the left and right sides of the door.

Specifications

Key Features

• Heavy-duty 11-gauge steel construction

• Designed specifically for 3-inch garage door track

• Outside-hookup cable configuration

• Drilled-pin design

• Provides a secure attachment point for garage door lift cables

• Suitable for commercial and industrial sectional door systems

• Sold as a left- and right-side pair

Compatibility & Fitment

The BB-6 is intended for sectional garage doors using 3-inch track and an outside-hookup bottom bracket configuration.

Before ordering, verify:

• Track size is 3"

• Existing bracket uses an outside cable hookup

• Bracket dimensions match the existing installation

• Door hardware and roller configuration are compatible

• Lift cable attachment style matches the BB-6

Do not select a replacement bottom bracket based only on its general appearance. Commercial bottom fixtures can differ in track size, height, flange dimensions, cable attachment position, and pin configuration.

What the Bottom Bracket Does

The bottom bracket mounts to the lowest section of the garage door and serves as the connection point between the door and the lift cable.

As the torsion or counterbalance system operates, the lift cables transfer force to these brackets to raise and lower the door. Because the bottom brackets carry substantial cable load, proper matching and installation are important.

Installation & Safety

Garage door bottom brackets are connected to lift cables that can remain under significant spring tension, even when the door is closed.

Do not loosen, remove, or adjust a bottom bracket while the counterbalance system is under tension. Installation or replacement should be performed by a qualified garage door technician using appropriate procedures and tools.

BB-6 Outside Hookup Bottom Brackets for 3" Track – 11 Gauge Pair

Heavy-duty BB-6 outside-hookup garage door bottom bracket pair for 3-inch track. 11-gauge steel construction with drilled-pin design for commercial and industrial sectional doors.