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Fabricator Benefits of TurnaSureís Bolting Services (Contractor/Erector)

Aid to Snugging

DTIs are the ONLY method that offers visual proof of a snug tight bolt prior to final tightening. Through partially compressing the protrusions, half or more of the finally required bolt tension is achieved. This is a superior snug compared to the "full effort of a man using an ordinary spud wrench (Podger spanner)". This helps prevent any loosening of adjacent fasteners in the final tightening process.

DTIs save bolting time

There is no more wasted time and cost incurred constantly rechecking torque values which are useless anyway. Also if turn of nut or part turn is carefully inspected for consistent snugging, followed by proper match marking, which is the only way to make it come close to working, (mark bolt end, nut and steel), then independent studies have proved DTIs save up to 33% on bolting time.

Eliminate "Call Backs"

If the DTIs have been properly flattened in the connections, this eliminates any controversies that the bolts have been properly tensioned, and therefore there are no costly and time consuming returns to re tighten connections already worked on.

Can be fully flattened

This is a unique feature with the TurnaSure DTI as they can be flattened fully before the bolt yields so a flattened DTI can be seen at a distance without the need for a feeler gauge. Countless testing by State DOTís on bolt tension calibrators shows that the gaps can be closed below .005" without any yielding in the bolts after tensioning. This is made possible by TurnaSureís unique geometry.

No need to use a hardened washer

The new TurnaSure curved protrusion design now exactly matches the washer face under the nut. When it is appropriate to place a DTI under the turned element the cost of a hardened washer can be eliminated altogether. Research and tests has shown better results than on the old straight sided protrusion design (offered by competitors) when a hardened washer had to be sandwiched between the nut and the DTI protrusions.

No affects on load whether oiled, rusty or coated

On the old traditional DTI design with straight sided protrusions the presence of oil could have a detrimental affect on load measuring capabilities. The new DTIs are extruded and this resulted in "Friction Free Pushback" TM of the protrusions during flattening.

Detect trapped Bolts

Sometimes bolts get trapped during erection due to the premature release of the girders before joints are properly clamped up. A TurnaSure DTI placed under a bolt head will detect this condition as full tension cannot be achieved under bolt heads and DTIs show this as they cannot be flattened.

Find out how TurnaSure DTIs and our bolting technology can bring structural stability and savings to your next project. Contact our experts online or by calling 1-800-525-7193.
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