Structural Blind Bolts
Structural Blind Bolts
(OP)
I have some framing with WF beams mmoment connected to HSS columns. One of ideas of connection is to use the blind bolts. However, I have a lot of difficulties to find something solid about it (USA).
Have someone any experiance with this kind of connection?
HSS Manual is not very helpful.
Have someone any experiance with this kind of connection?
HSS Manual is not very helpful.





RE: Structural Blind Bolts
RE: Structural Blind Bolts
I would stick to the normal bolts. I have welded a plate on the face of a colum that was drilled and tapped for bolts (cap screws with full thread), but that was for a very large piece of equipment. The beams were 1" and 2" built up box beams. I had diaphrams inside some of the boxes. It was not cheap to fabricate.
RE: Structural Blind Bolts
Used as structural connection on tubes.
RE: Structural Blind Bolts
I called Lindapter for more info.
I understand the limitation in use, but in some cases blind bolts can be more efficient (cheaper) than other type of connection, with the sufficient strength.
RE: Structural Blind Bolts
RE: Structural Blind Bolts
http://www.huck.com
RE: Structural Blind Bolts
Another system is Flowdrill where a tool is rotated at high speed ad pushed through the steel, forming a swaged cone of material on the internal face. This can then be tapped and bolted in the usual way. Tool cost is approx $1600, but pay back good on volume.
RE: Structural Blind Bolts
For more check out these sites:
www.frictiondrill.com
www.formdrill.com
www.flowdrill.nl
RE: Structural Blind Bolts
From my experience the drills run between $50 -$390 depending on size and type of application. And tool life is 3,000 to 40,000 holes depending on material.
RE: Structural Blind Bolts
www.danly-te.com