28 March 2019
Sign up to our newsletterWant more news like this? Sign up to our newsletter.


When designers at a leading manufacturer of professional and domestic aluminium ladders needed safety-critical fasteners that they could rely on for the expected lifetime of their product, they turned to Bollhoff for a solution.
The first task that the ladder design team needed to address was to include a mechanical ‘stop’ on the folding mechanism that would allow the ladder to be opened out by sections prior to use and also be folded down, again by section, afterwards: the latter facility being required to provide a manageable size for ease of transportation and movement by users

Additionally, a further requirement was to evaluate the fastening options for the mounts into which the various sections of the ladder would rest as it extended upwards when in use: and which would be taking the full weight of users plus any equipment they might be carrying. For this, one bracket was required on each of the upright sections for each of the extended sections to rest in.

There were a number of considerations all in play at the same time in the application and amongst these were the amount of weight that the ladder needed to be certified as safe to carry, the fact that the ladders may spend a considerable part of their working lives in an outdoor environment, and that the aluminium sections being fastened into were thin walled as part of a quest for the overall lightness of each unit.

Bollhoff recommended its RIVNUT blind fastener for the job for a number of reasons. Amongst these was the fact that the fastener had been developed from the outset to provide extremely high pull out strength, that it could be supplied with a number of corrosion-protection finishes and that it was specifically designed for use in thin-walled materials.

Bollhoff’s Clive Brown observed “RIVNUT was well qualified for this application because it ticked all the required boxes for the ladder design team. Most of us make use of a ladder at some point during the year so we fully understood what the manufacturers meant when they demanded that their load carrying criteria needed to be safely met! By delivering fasteners with adequate corrosion protection we also provided satisfaction that the described in-service life could be met: this was deemed vital given the potential costs involved of products being returned by customers in the field”.

Bollhoff Ltd

Related Websites


Similar Articles

Barton Cold-Form new machinery

Barton Cold-Form, the UK manufacturing division of Optimas Solutions and experts in cold forging technology since 1932 has made machinery and technology upgrades totalling over ...

CLIQ locks for Beta Tools

Beta Tools has partnered with security supplier Abloy UK to create a quality solution with the aim of giving clients confidence when storing and managing their tools.

FDB's DIRAK swinghandle range

FDB Panel Fittings now offers ex-stock availability of the DIRAK swinghandle series

EMKA cabinet innovations

Closure of control cabinets and enclosures in mechanical engineering must meet diverse requirements, primarily of course safety, as well as locking and operating convenience and ...

Poka Yoke

The Japanese term Poka Yoke – which translates to “mistake-proofing” or “Inadvertent error prevention” – is familiar to most people working in manufacturing. Engineers have always ...

Manufacturing relationships

Manufacturing philosophies are subject to change and fashion, but Challenge Europe finds that the one constant is the need for trust between suppliers and manufacturing customer.

Staytite Smart Racks & Vending

Ensuring that you have all consumables, C-class parts, fasteners, and other needed items easily available to your operatives can often be an essential part of production. But how ...

Speeding up your fluid transf

As a leading supplier of fastening solutions, TFC is helping manufacturers reliably speed up their fluid transfer processes. By increasing their assembly speed, manufacturers can ...

Fath levelling foot bracket

A bracket is now available for height-adjustable mounting of levelling feet on the side of extruded profile frames.