#8 Sash Chain – 5' Length for Garage Door Locks & Fire Door Applications

The #8 Sash Chain – 5' Length is a replacement mechanical linkage chain used in compatible garage door locking systems, spring-latch assemblies, and fire door applications.

This chain is commonly used to connect interior release handles, keyed T-handles, spring latches, and other mechanical lock components where a flexible but durable chain linkage is required.

SSC supplies this #8 sash chain in 5-foot lengths, making it suitable for repairs, custom lock assemblies, and replacement of worn, stretched, damaged, or missing chain in compatible garage door locking systems.

Features

• #8 sash chain

• Supplied in 5-foot length

• Designed for garage door lock systems

• Suitable for fire door applications

• Useful with compatible spring-latch assemblies

• Can be used as mechanical linkage between handles and locking components

• Ideal for replacement of worn, damaged, or missing sash chain

• Suitable for residential and compatible light-commercial door hardware

• Simple mechanical component requiring no electricity or batteries

Garage Door Lock Applications

Sash chain is commonly used inside traditional mechanical garage door lock systems.

Depending on the door configuration, the chain can connect components such as:

• Keyed exterior T-handles

• Inside release handles

• Spring latches

• Side latch assemblies

• S-hooks

• Other compatible mechanical lock linkage

When the handle is operated, movement is transferred through the sash chain to the latch mechanism, allowing the garage door lock to engage or release.

Used with Spring Latch Systems

Many garage door spring-latch systems use sash chain to connect the center release mechanism to the side latches.

The chain allows the installer to route the mechanical linkage across the inside face of the garage door while still providing enough flexibility for proper adjustment.

Correct chain length and tension are important so the latches:

• Fully retract when the release handle is operated

• Fully engage when the locking system returns to the locked position

• Release at approximately the same time

• Do not bind from excessive tension

• Do not remain partially engaged because of excessive slack

5-Foot Length

Each order includes:

5 Feet of #8 Sash Chain

SSC specifies #8 sash chain as being sold in 5-foot lengths.

If your installation requires more than 5 feet, determine the total chain length required before ordering and purchase the appropriate quantity.

Fire Door Applications

SSC also specifies this chain for fire door use.

When sash chain is used as part of a fire-rated door or fire-door release system, installation must follow the applicable door manufacturer's requirements, listing requirements, and local codes.

Do not substitute hardware in a listed fire-door assembly unless the replacement component is approved for that specific application.

Common Uses

This #8 sash chain can be used for:

• Garage door spring-latch systems

• Mechanical garage door locks

• Replacement lock linkage

• Inside release assemblies

• Exterior T-handle lock systems

• Fire door applications

• Repair of broken or missing sash chain

• Custom mechanical linkage assemblies

Specifications

• Product Type: Sash Chain

• SSC Part Number: 143167

• Chain Size: #8

• Length: 5 ft

• Primary Applications: Locks and Fire Doors

• Operation: Mechanical

• Quantity: 1 × 5-Foot Length

Package Contents

• 1 × #8 Sash Chain – 5' Length

Related Hardware

Depending on the garage door locking system, additional components may be required, including:

• Spring latches

• Auto-latch strikers

• Inside release handle

• Exterior keyed T-handle

• S-hooks

• Cable or chain adjustment hardware

• Other compatible lock components

SSC also offers #8-compatible S-hooks for sash-chain applications.

Before Ordering

Before replacing an existing sash chain, verify:

• The system uses #8 sash chain

• The required chain length

• Existing latches and release hardware are still functional

• S-hooks and connecting hardware are not damaged

• The replacement chain can be routed without interfering with door movement

If several components of the locking system are worn or missing, replacing the complete latch set may be more practical than replacing only the chain.

Installation Notes

Route the sash chain so it remains clear of:

• Hinges

• Rollers

• Track

• Operator hardware

• Other moving door components

Adjust the chain so there is enough movement to fully release the locking mechanism without excessive slack.

After installation:

• Test the release handle

• Verify both latches release completely

• Verify both latches re-engage properly

• Confirm the chain does not bind

• Make sure the garage door moves freely when unlocked

Important for Automatic Garage Door Openers

If the sash chain operates a mechanical garage door lock on a door equipped with an automatic opener, make sure the lock is fully disengaged before operating the opener.

Never activate an electric garage door opener against an engaged mechanical lock.

Safety

Do not modify or substitute lock or fire-door hardware without confirming compatibility.

For fire-door applications, follow all applicable manufacturer instructions and code requirements.

Garage doors can contain heavy components, springs, and cables under significant tension. Work involving the door's counterbalance system should be performed only by individuals familiar with proper garage door service procedures.