Stanley Hardware

We engineered the QDC300 series with the same high-performance materials and construction you expect from dormakaba, but in a smaller body. The smaller, narrower footprint of the QDC300 means you can put quality on even the narrowest top rail doors. When you choose the name more people trust with their security, you can rely on top performance for years to come.

Features:

• Small, but strong. Constructed with cast aluminum, the QDC300 series combines a slim design and small footprint with proven durability, making it a great choice for even the narrowest full glass doors.
• Easy to retrofit. There’s no need to re-prep your door. The QDC300 has the same footprint as the Norton 1600 series, so it’s quick and easy to retrofit.
• Industry-leading warranty. Each QDC300 closer comes with a lifetime mechanical warranty and a three-year warranty on finish.
• Long term value. We price our QDC300 closers competitively, but their real value becomes clear over time. Strong materials and careful design ensures QDC300 closers perform reliably over the long term—and are backed by a lifetime warranty.
• Exceeds certification standards. The QDC300 is BHMA/ANSI grade 1 certified, and significantly exceeds performance requirements. These closers are fully adjustable, with a barrier-free option to meet ADA requirements.
• Outstanding versatility. We engineered the QDC300 series to be fully adjustable and usable on both interior and exterior doors. All-weather fluid, a variety of feature options, and non-handed and universal mount flexibility make it easy to stock and use the QDC300 in a wide variety of applications.
• Premium performance standard. Get premium performance options like delayed action and a back check valve standard with the QDC300 series.
• Short lead time. QDC300 closers are available for immediate shipment.

Functions:

• QDC311: Tri-pack arm (non-handed)
• QDC312: Tri-pack arm with hold-open (non-handed)
• QDC313: Heavy-duty arm with compression stop (non-handed)
• QDC314: Heavy-duty arm with hold-open and compression stop (non-handed)

Specifications:

• Body: Cast aluminum
• Covers: Full-size architectural plastic
• Arms & brackets: Tri-pack standard; hold-open and dead stop arms optional
• Arms: Heat-treated carbon steel
• Springs: High-impact hand-drawn steel wire
• Pinions: Heat-treated chrome molybdenum steel
• Cylinders: Heat-treated free-cutting carbon steel
• Fasteners: Wood and machine screws standard; sex nuts and self-reaming, self-tapping screws standard

Finishes:

• 689 - Painted aluminum
• 690 - Painted duranodic bronze
• 696 - Painted satin brass