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

Vestamid PEBA: new foam type

A new modification of Evonik’s established polyamide elastomer Vestamid PEBA (polyether block amide) is now available. The PEBA can now be foamed, making a density of 0.1 g/cm³ ...

Hague Fasteners' birthday news

A Black Country manufacturer that supplies critical components to iconic London buildings, Birmingham New Street Station, sport stadiums and the world’s power stations is ...

Trifast plc acquires Falcon

TR continues to expand its presence in strategic areas globally to support the localised service required by many of its OEM customers.

Profile of Henkel's Nigel Fay

Will Dalrymple speaks with Henkel’s corporate vice president of innovation & application engineering for Loctite Industrial Adhesives, Nigel Fay, who has recently been given extra ...

Pull-to-stroke, pull-to-force

As today’s assembly operations focus on speed, efficiency and accuracy, quality control for blind riveting is a crucial concern in industrial manufacturing. Industrial ...

ROI in mixing

When mixing liquids, pastes and powders during an industrial process, manufacturers may identify issues that lead them to consider alternative methods. Common areas for ...

How did Advanced Adhesives ach

Advanced Adhesives have for many years now supplied it`s PP3000 Structural Adhesive for bonding low surface energy plastics like PP, HDPE etc. Formulated for a large automotive ...

The Complete Service from Stay

Staytite is here to help manufacturers achieve greater efficiency by providing services to supply the essential items required for manufacture, from fasteners, C-class components, ...

Southco Monitor Arms From Zygo

In an industry where equipment reliability can be a matter of life or death, Southco’s selection of display monitor arms deliver enhanced operational efficiency and increased user ...