developments in construction practice have created a demand for the Model MZ bolt tension calibrator: thinner sections of structural steel and the use of tension-control bolts. Designed to accept shorter grip length bolts, the Model MZ provides all the features and capabilities of our standard Model M and MS calibrators.

Whether calibrating power wrenches or testing fasteners, you need no special training, no additional equipment. Simply clamp the calibrator to a beam or column and insert your fastener. Tightening it gives a direct dial pressure reading equivalent to the tension created in the fastener—guaranteed accurate within 1% every time.

• Lightweight Design
• 126,000 lb Capacity - Will do 1-1/4" A490 bolts!
• New bushing design eliminates dowel pins
• Holes predrilled for torque reaction kits
• Skidmore Accuracy
• Skidmore Reliability

• 1/2" bolts
• 5/8" bolts
• 3/4" bolts
• 7/8" bolts
• 1" bolts
• 1-1/8" bolts
• 1-1/4" bolts
• metric equivalents : M12, M14, M16, M18, M20, M22, M24, M27, M30