What to look for when installing a bolt?
Since a majority of the bolt stress is taken on the first few threads, inspect the condition of the first several threads being engaged. For full engagement, make sure the bolt sticks a couple threads through the nut to fully engage bolt and nut to avoid short bolting condition.
What are the guidelines for you bolt design?
Guidelines for U-Bolt Design www.clampsinc.com The value and tolerances of blank diameters for imperial or metric rolled threads should be governed by published standards for pitch diameter 2A or 6g threads. As an example, if a 1/2-13 UNC-2A thread is desired, the standard pitch diameter ranges is 0.4435 to 0.4485 inches.
Can a TGE bolt go all the way in?
But the ****** bolt hole is stripped on one of them. The bolt will go all the way in but never catch enough to hold the microwave’s weight. Tge bolt itself is fine. The other hole works like it should, too.
What should be the head angularity of a bolt?
In the assembly, assure that the head angularity is less than 1°. Fatigue increases sharply beyond 1° head angularity. Counter bore to true bolt head angularity is a common fix for some applications such as motor feet. 3. During assembly ensure that bolt preload is sufficient as previously discussed.
What do you do when studs and bolts break?
There are times when studs and bolts break in locations where you can’t get a hammer or drill. In these instances, you’re either going to have to hope that the extractor or a pair of locking pliers will work, but you’re most likely going to need to remove the part from the vehicle.
When do you need to use J bolts?
Thus the resulting look is like a ‘J’. In order for J bolts to be used correctly, you will need to insert them into wet cement. This type of bolt is great for deck supports, the bottom sill of a 2 x 4 frame home construction, or joining a new concrete wall to a previous one. However, the installation always necessitates wet cement.
What’s the best way to repair an anchor bolt?
The most effective way to repair an anchor bolt is to cut off the old bolt low enough below the equipment base, so the replacement top section length will be at least 10 to 12 bolt diameters. Do not consider welding, as the steel in many anchor bolts does not weld satisfactorily. Mechanical threading with a coupling nut is the only sure repair.
Which is the best specification for structural bolts?
• The Research Council on Structural Connections (RCSC) prepares specifications and documents related to structuralconnections • RCSC’s Specification for Structural Joints Using ASTM A325 or A490 Bolts (2000) is a widely used specification which discusses joints, fasteners, limit states, installation, and inspections.