November 22, 2021 Alice Henneman

Measuring Dzus Fasteners The correct way to measure the length or grip of a Dzus Fastener is to measure from under the head of the fastener to the bottom of the spring locking area. Flush Head and Self-Ejecting Dzus Fasteners are measured from the top of the head to the bottom of the spring locking area.

What size is Dzus?

There are two common sizes of Dzus, the most common of which is the EHF5 type which is 37mm across the diamond-head end to end and 27mm between the rivet holes. The larger variant is the EHF6 and this measures 44mm from end to end and the rivet spacing is 34mm.

What are Dzus rails?

A DZUS rail acts as a supporting frame for the panels or removable parts to be fastened. A rail is designed as a right angle, flat or dual sided T shape and consists of continuous holes and rigid wire for stud engagement.

How do you size a Dzus fastener?

The correct way to measure the length or grip of a Dzus Fastener is to measure from under the head of the fastener to the bottom of the spring locking area. Flush Head and Self-Ejecting Dzus Fasteners are measured from the top of the head to the bottom of the spring locking area.

What is a dzus key?

The Dzus fastener, also known as a turnlock fastener or quick-action panel fastener, is a type of proprietary quarter-turn spiral cam lock fastener often used to secure skin panels on aircraft and other high-performance vehicles. It is named after its inventor William Dzus (/zuːs/).

What are quarter turn fasteners?

Quarter-turn fasteners apply a predictable clamping force and provide a detent in locked position that resists accidental opening. A quarter-turn fastener consists of a stud, retaining ring, and receptacle. A spring element is also required in the joint to allow them to work properly.

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