HOPPE 16mm Roundbolt Bottom Gear for Multipoint Locks

Replacement Roundbolt Bottom Gear for HOPPE HLS9000 Multipoint Locks

The bottom gear is a critical component in any HOPPE HLS9000 multipoint lock assembly, responsible for driving the lower roundbolt that secures your door at the base. When this component fails or wears out, the entire locking system can become compromised. MPLocks carries genuine HOPPE 16mm roundbolt bottom gear units designed for direct replacement in existing HLS9000 configurations. These manual-version gears work with the standard 5/8-inch (16mm) faceplate width found on most European-style multipoint doors, ensuring seamless integration with your current hardware.

Precision-Engineered for Secure Door Engagement

Each HOPPE roundbolt bottom gear in this collection features a 1-inch (25.4mm) deadbolt throw, providing substantial engagement with the strike plate for reliable security. The roundbolt design offers a different locking mechanism than shootbolt or hook-style systems, using a cylindrical bolt that extends into a corresponding socket strike. This collection includes units with handle heights of 36 inches and roundbolt positions carefully calibrated for standard door configurations, ensuring proper alignment when installed.

Reversible Latch Handing for Installation Flexibility

One practical advantage of these bottom gear units is the reversible springlatch design. If you need to change the handing during installation, simply pull the springlatch and mis-handing latch, rotate them in the opposite direction, and release. This can typically be done with a pair of pliers, eliminating the need to order a separate left-hand or right-hand version. This flexibility saves time during installation and reduces the chance of ordering the wrong part for your door swing direction.

• HOPPE HLS9000 Roundbolt Multipoint Lock Systems
• HOPPE 16mm Roundbolt Top Extensions
• HOPPE HLS9000 Strike Plates and Hardware

Choosing the Right Backset for Your Door

The most important measurement when selecting a replacement bottom gear is the backset—the distance from the edge of the door to the center of the handle spindle hole. This collection offers both 35mm (1-3/8 inch) and 45mm (1-3/4 inch) backset options. To measure your existing backset, remove the current gear and measure from the faceplate edge to the spindle center, or simply measure your door's existing backset distance. Ordering the wrong backset will result in misaligned handles and improper lock function, so take careful measurements before purchasing.

If you're unsure which bottom gear matches your existing HOPPE multipoint system, our team can help you confirm the right part. Call (816) 221-6543 to speak with a specialist who understands the full HLS9000 product line, or use our free Multipoint Lock Identifier to submit your lock details for expert review.