Hammer Head T-Nuts vs Roll-In T-Nuts: XAHC or XAHQ?

Place the XAHC nut through the slot with its narrow side aligned to the opening. The raised step and toothed surface face outward. Lightly engage a standard right-hand bolt, then turn the bolt clockwise so thread friction drives the nut through a 90-degree rotation.

The nut reaches its engaged position when the diagonal stop contacts the inner slot wall. The installer will feel a clear increase in resistance, and the raised step can be seen crosswise through the slot opening. A normal hex key for the mating bolt is sufficient; no special installation tool is required.

Turning counterclockwise moves the nut back toward the parallel position for removal.

Face the XAHQ threaded hole outward, insert the nut at an angle and roll it into position. The motion needs lateral space for the tilted body to pass through the opening and settle inside the channel.

XAHQ normally enters without using a bolt as an insertion handle. It has no spring retention, so hold it in place during vertical installation until the bolt starts engaging.

XAHC usually needs less lateral movement because its narrow side enters vertically before the 90-degree rotation. XAHQ needs enough side clearance to tilt and roll through the opening. This distinction can matter near panels, end closures and other components that limit hand or tool movement.

Installation space alone does not establish fit. The profile must also provide the channel depth, slot-lip geometry and internal clearance required by the selected nut.

For XAHC, confirm that the raised-step dimensions and the profile's slot-lip geometry allow the nut to rotate, seat and clamp the external component correctly. For XAHQ, confirm that the channel is deep enough for the nut body to complete the roll-in motion without bottoming out.

For both families, match: