The unique and innovative nature of the Blind Bolt helps to make it flexible and convenient, but it also dictates that particular criteria have to be in place if the bolts in question are to function properly. The meaning of the various measurements applied to the bolt, and the application of these figures, has to be understood.

The above illustration conveys these measurements, and the menu below offers individual explanations. If you’d like to know more, or ask exactly how you can use hollow section bolts, please get in touch using the number below or email us here.

Minimum Fixing Thickness

The minimum fixing thickness is a measure of the shortest distance which a particular bolt can fix. Combining the thickness of the substances being fixed in place will produce this figure.

Maximum Fixing Thickness

The maximum fixing thickness is a measure of the largest distance which a particular bolt can fix. Combining the thickness of the substances being fixed in place will produce this figure.

Anchor Clearance

The anchor clearance is a measure of the minimum distance required for the anchor of the Blind Bolt to function correctly. It has to applied exactly to ensure that the anchor doesn’t impact on any wall where it is being applied.

Depth Clearance

The depth clearance is a measure of the smallest space required within a cavity wall in order for the Blind Bolt anchor to function correctly. It has to be applied exactly to ensure that the bolt doesn’t impact on the opposite wall prior to the anchor being deployed.

Hole Centers

The hole centres is the smallest distance which needs to be placed between the holes being drilled when a row of Blind Bolts is being fixed in place.