Some Known Facts About A325 Tension Control Bolt System - Tanner Bolt.

Galvanized bolts have a more durable lube on them as compared to the water soluble lube on the plain bolts, however you still need to save them correctly too. If something takes place to your stress control bolts out in the field, you can not simply re-lubricate them yourself. They should be returned to the maker for them to make the restorative steps and retest them.

Tension Control Bolts • Meto Consult

This is inadvisable because the bolts can lose their lubrication in as low as three days. Another thing to avoid is covering the bolts with a tarp in the outdoors elements.  The Most Complete Run-Down  can form causing the lubrication to completely get rid of. On the other hand, hot and dry weather makes the lubrication vaporize.

Some would argue that another con about tension control bolts is that they more expensive than both heavy hex bolts and DTIs (direct tension indicators). On top of the costlier bolt assembly, the shear wrench used for their installation runs at least $1700. Key Takeaways, Just to conclude a few of the above points on the pros and cons of tension control bolts, here is a summary.

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You should focus and store them properly. And finally, it is feasible over whether they are more expensive or more cost-effective than their heavy hex bolt and DTI counterparts.

are now the most popular option in high-strength structural bolting and officially recognized by the AISC (American Institute of Steel Construction) and the RCSC (Research Council on Structural Links) as an authorized setup method. A Stress Control Bolts consists of 1 bolt, 1 nut and 1 washer, pre-assembled and there for they are shown, 1 lot number, on the accreditation documentation.

Tension Control Bolts - Twist Off Bolt - Stainless Steel Tc Bolts

Tension Control Bolts Dimensions & Specs - AFT Fasteners

They are set up with a specialized electrical shear wrench that has an outer socket that turns the nut counterclockwise, while getting the spline with the inner socket turning it clockwise. When the proper stress level has been attained the spline snaps off giving you a visual indication of appropriate installation.