Flat Cam Locking Device

A flat cam locking device is a less common type of locking point found on some multipoint locks. Instead of extending outward like a hook or rolling like a roller, a flat cam slides along the faceplate to engage with a matching strike in the frame.

Flat cams are most often seen on older or brand-specific systems and are frequently mistaken for rollers or tongues.

Flat Cam Example

The cam is a thin, flat piece of metal that moves up and down rather than rotating like a hook or roller.

How Flat Cams Differ From Other Locking Devices

Most multipoint systems use hooks, rollers, or shootbolts. A flat cam works differently because it relies on sliding engagement rather than rotation or projection.

• Hooks rotate outward into the strike
• Rollers press into curved strikes to pull the door tight
• Shootbolts extend straight into the frame or floor
• Flat cams slide into a shaped strike opening

Other Locking Devices

Shown here are two common device styles for comparison: a roller on the left and a shootbolt on the right. Flat cams engage differently and require a different strike shape.

How a Flat Cam Engages the Frame

When the handle is lifted or the key is turned, the internal mechanism moves the cam. The flat edge enters the strike opening and holds the door closed.

Where You’re Most Likely to See Flat Cams

• Older multipoint lock systems
• Brand-specific or discontinued hardware
• Narrow rectangular strike openings
• Doors with limited space for hooks or bolts

Why Flat Cams Matter During Replacement

A lock that originally used flat cams cannot always be replaced with a hook or roller style without also changing the strikes. The locking method must match the frame preparation.

If you’re evaluating replacement options, reviewing the available designs in our multipoint locks collection can help clarify which locking styles are currently supported.

Helpful Takeaway

• Flat cams slide, they do not rotate
• The strike must match the cam shape
• Not all locks can convert from flat cam to other devices
• Device style matters just as much as measurements