One hole straps - hole up or hole down?

When running EMT on a wall parallel to the floor and using one hole straps for support should the hole in the strap be up (above the tubing) or down (below the tubing)? I always thought the hole was supposed to be up. But a lot of electricians have been putting the hole down. Someone told me the listing literature says the hole is supposed to be up.

Reply to
Gerald Newton
Loading thread data ...

I have never seen it specified and I have seen every other one flipped for people who can't make up their mind.

Reply to


Here abouts there is an thought that with the screw down it is stronger. Still relies on the clamp and screw to be solidly connect as a unit.

So what do you do when the conduit is vertical?

left or right?

Reply to

Actual experience shows that the screw up is stronger. When you pull down on the pipe with the screw down the strap bends where the arch meets the flat part of the strap and the pipe pulls away from the wall. With the screw up the pipe pulls into the wall because the arch of the strap is stronger than the arch to flat part of the strap. This may sound trivial, but believe me it is true. Anytime I see the screw down I know the electrician still has something to learn. The electrician that told me about the listing was a director of an apprenticeship program and electrical administrator that went to work for an electrical supply house and begin reading all the labeling and listing information he could find. Professionals place the screw up!

Reply to
Gerald Newton

Neither. Insert the end with the hole *into* the wall to avoid silly questions. :-)

Reply to


Reply to

Looking for a job with a growing civil engineering firm? Our client has been in existence for 40 years in Southern California. Civil engineering and surveying services for residential and commercial developments and subdivisions throughout Southern California. Excellent pay and benefits available. Seeking full-time applicants. Located at the juncture of Los Angeles, Orange, and San Bernardino Counties.

Current Positions Available:

Engineering Designer (1-2 openings) Experienced civil engineering designer with at least 5 years experience in the civil engineering and land development field. Experience with Grading Plans, Street Plans, Hydrology Reports, Sewer Plans, Water Plans, and related reports and plans. No other disciplines. Knowledge of AutoCad, SoftDesk, and CivilSoft programs. Registration not required. California experience preferred and must have legal authorization to work in the U.S.

AutoCad Draftsperson (3-5 openings) AutoCad Draftsperson with knowledge of AutoCad, SoftDesk, and CivilSoft programs. At least 5 years experience in civil engineering drafting. California experience preferred and must have legal authorization to work in the U.S. No architectural, mechanical, or structural drafters.


Applying Instructions

If you like to apply for any of these positions please e-mail your updated resume to

Reply to
Bowman International

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.