Understanding Dynabolts and Sleeve Anchors - The Scrooz Fasteners Blog
What are Sleeve Anchors and Dynabolts?
Let's start by clarifying the terminology. Sleeve anchors are a type of mechanical expansion bolt used in masonry and concrete, while Dynabolt is a specific brand made by Ramset in Australia. However, it has become a colloquial term for any expanding anchor bolt in the market.
It's worth noting that unless a retailer is promoting or selling Ramset's Dynabolt, they will generally refer to it as a sleeve anchor despite the common use of the term Dynabolt among customers.
So, What Exactly is a Sleeve Anchor?
A sleeve anchor is a medium duty fastener designed to fix loads up to hundreds of kilograms in concrete or other masonry substrates. The core of a sleeve anchor consists of a center bolt with an expansion cone at the end, enclosed by a full-length sleeve and topped with a hex nut. It's named after the way it's made.
To install a sleeve anchor, drill a hole of the same diameter as the sleeve, then hammer it into the base substrate- mostly concrete- through the item to be fixed. Tighten the hex nut until the sleeve expands, and the cone at the end of the bolt grips into the base substrate securely.
Here's a glimpse of a disassembled sleeve anchor.
Once installed, it resembles a standard bolt visible on the surface of the item to be fixed. The installation process, including a pilot hole of the same diameter as the sleeve, will vary depending on the brand you're using or the manufacturer's specifications.
In summary, Sleeve Anchors and Dynabolts (a brand of sleeve anchors) work through mechanical expansion and are commonly used in masonry and concrete substrates. They can fix medium to heavy loads and easy to install with the pilot hole and tightening of the hex nut.
If further details regarding any of our fastening devices pique your interest, be sure to peruse our comprehensive inventory here: Fasteners.
We extend our sincerest gratitude to our readers for taking the time to delve into our latest blog post.
Best regards,
The Scrooz Fasteners Team"
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