TECHNICAL

Valley Forge

CONTACT：Denby Bill

4410W JEFFERSON ST

PHOENIX,AZ 85043

Call：(512)650-0900

Email：Send Email to Seller

www.vfbolts.com/

Detailed description

A fastener is modified by machining a small hole into the head. Minimal modifications to the bolt assure basic bolt design integrity. A gage pin is then inserted into the hole and secured at the bottom. Next, a datum disk is fitted on the top of the bolt head and forms a flat surface with the top of the gage pin when the bolt is unloaded. When the bolt is tightened, it elongates and the gauge pin is drawn into the bolt away from the datum disk surface. A portable electronic displacement transducer measures the distance between the datum disk surface and the tip of the gage pin. The elongation of the bolt is then correlated to joint clamp load via our electronic or mechanical hand held monitors.