HD Bolt Fixing and Testing Terms Explained

The heavy duty Blind Bolt is a unique and innovative product. This helps to make it a convenient and flexible blind fixing solution which has been utilised by designers and architects all over the world. It also means that the various measurements given for each heavy duty bolt have to be noted and adhered to when it is being used,

in order to ensure successful operation. The illustration above sets out these measurements while the menu below explains what each means. For further information, or if you’re not entirely sure how you could use heavy duty bolts, please contact us on the number below or email us.

Minimum Fixing Thickness

This term refers to the shortest distance which any individual heavy duty bolt can fix. You can arrive at this figure by combining the thickness of the substances being fixed in place.

Maximum Fixing Thickness

This term refers to the largest distance which an individual bolt can fix. You can arrive at this figure by combining the thickness of the substances being fixed in place.

Depth Clearance

This figure refers to the smallest space needed inside a cavity wall if the Heavy Duty Bolt’s legs are to be able to work properly. It has to be carefully noted in order to make sure that the bolt doesn’t come into contact with the opposite wall before you have a chance to deploy the legs.

Shear Strength Over Thread

This term describes the force needed to make the bolt fail in cases where the shear plane, derived from the two materials being fixed, falls over the threaded section of the bolt.

Tensile Strength

This term describes the force needed to cause a bolt to fail when it is handling a tensile load.

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