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What is the Commercial Hardware QDB100 & QDB200?

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What is the Commercial Hardware QDB100 & QDB200?

The QDB100 is a grade 1 tubular deadbolt and the QDB200 is a grade 2 tubular deadbolt. 
The QDB100 & QDB200 are equipped with an ADA thumb turn and have a solid forged housing to provide enhanced strength and durability.


 

Image showing two tubular deadbolt assemblies for comparison. Left: QDB100 Tubular Deadbolt, model QDB180626, featuring a cylindrical brushed stainless-steel exterior housing, square mounting plate, and brass 1-inch latch bolt in the extended position. Right: QDB200 Tubular Deadbolt, model QDB282626, with a similar cylindrical brushed stainless-steel housing and brass latch bolt, shown from a slightly different angle. The image also lists shared features including lifetime mechanical warranty, ADA-compliant turn lever, solid forged housing, and a 1-inch latch bolt with steel roller pin for saw resistance. Certification marks shown include UL Listed, ANSI, and BHMA Certified.
Image titled ‘Unique QDB200 Offerings’ showing two configuration options of the QDB200 tubular deadbolt. On the left is model QDB285626, featuring a tubular deadbolt assembly with brushed stainless-steel exterior housing, square mounting plate, brass latch bolt, and an integrated locked/unlocked visual indicator on the interior face. On the right is model QDB288626, showing the exterior keyed cylinder with a brushed stainless-steel round housing labeled ‘Key Control.’ Both images present component-level views for feature comparison.

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