The lags are sealed with a black roofing caulk compound forgot the exact name that was put in the pilot holes that were drilled through brand new shingles roof.
Unistrut roofing bolts.
There are even spring nuts with bolts built in.
Find out how you can qualify for free shipping on unistrut general hardware orders over 35.
The core of the unistrut framing system the metal framing channel allows infinite positioning of fittings along the entire piece of strut without welding or drilling.
A 6 8 piece of unistrut with 2 holes drilled in it for 3 or 3 5 stainless steel lag bolts screwed to the rafters.
1200 lbs bolt down rigid stand mount.
These are called stud nuts and they can make the assembly process very quick and efficient.
Framing hardware bolts and nuts javascript seems to be disabled in your browser.
8 x 8 base x 16 1 4 height.
Each rooftop support combines fully adjustable unistrut channel eliminating the cutting and welding associated with most fabricated supports with a secure non penetrating rubber base.
Fifteen channel sizes and hundreds of fittings offer solutions to a virtually endless variety of projects.
Unistrut nuts are available with a variety of hole sizes to accept a range of hex head cap screw hex bolt sizes.