Field Support for Structural Bolting
Below you'll find information commonly needed in the field.
1. Installation and Inspection InstructionsInstallation is as easy as the following 3 steps:
1. Calibrate in a skidmore
2. Snug the array of bolts
3. Drive it 'Till It Squirts
Read more for complete details.
2. Bolt Torque RequirementsHow much torque does it take to tension a bolt? Because torque at specific bolt tension varies by as much as +/-30%, even within a specific set set or lot of bolts, Torque tables are not allowed for structural bolts. If a torque value is to be established for a particular bolt grade and diameter, the Research Council rules are as follows:
3. Bolt Tension RequirementsFrom the Research Council on Structural Connections, the minimum bolt tension is as follows:
4. Flat Washer ChartFor all squirter® DTI's over larger holes, in order to make the squirt feature function correctly, it is necessary the correct ID and OD flat washers both under and over the squirter® DTI. For a table of the dimensions on these "special" flat washers.
5. See Squirter® DTIs In ActionView our Informational Videos
6. Bolt LubricantsLubriacants knock down the torque resistance by about one third every time. Available in fluid or stick wax.
View available lubricants.
7. WrenchesNow there is an alternative to impacting, and Applied Bolting sells it. It's our Maeda-built reaction-arm non-impacting 900 ft-lb electric wrench. We sell them to erectors who don't want to use air tools, at least not for all their bolts. These erectors put the DTI on the nut end, and don't bother to hold the roll.
View the details
8. Bolt Torque ControlHow much torque does it take to tension a bolt with a DTI?
Find out here
9. What is meant by "Snug Tight"?The RCSC defines this as the point where the connection plies are in firm contact, and can be obtained by the full effort of a man on a spud wrench. With DTI's, life is much simpler...