Blind Bolt Testing Terms Explained

Blind Bolt Testing Terms Explained

The unique and innovative nature of Blind Bolts means that the tensile strength of every blind fixing, whether a heavy duty bolt or a thin wall bolt, remains constant. The shear strength of a fixing, alternatively, will vary from case to case. The thickness of the substances being fixed to each other will have the most influence on the strength of any hollow bolts. The terms used when detailing this phenomenon are set out below.

Our technical data sheets contain detailed information on these matters, and if you still have any questions, please contact us by sending an email or using the details given below.

Tensile Strength

Tensile strength is a measure of the force needed to make a bolt fail when it is bearing a tensile load.

Shear Strength Over Thread

Shear strength over thread is a measure of the force needed to make a bolt fail when its use dictates that the shear plane, made up of the two materials being fixed, falls across the threaded section of the bolt.

Shear Strength Over Slot

Shear strength over slot is a measure of the force needed to make a bolt fail in cases when its use dictates that the shear plane, made up of the two materials being fixed, falls across the slotted section of the bolt. This is only the case when the bolt has been fixed using the appropriate vertical alignment and the shear plane itself is close to the anchor.

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