what's inside hole diameter ?
2028476
That is the hole that the barrel goes thru, the two sizes, 15/16 is slightly smaller than the 1 1/4 and thus tighter to the barrel without touching it. It gives a nice finished touch to it. Most bull type barrels need the larger while the standard .750 barrel will take the 15/16, hope this helps
1053950
5/8" hole diameter. The switch is normally open and when you push the plunger it closes, completing the circuit.
1051467
Fourteen inches in diameter circular hole if you have 16-inch on center rafters. Up to 19-inches in diameter hole if you have 24-inch on center rafters. Manufacturer's installation directions cover this well.
1488192
Overall diameter ≈ 70mm; Outer step diameter ≈ 61mm; Central step diameter ≈ 35mm and Central hole diameter ≈ 30 mm. Four 8mm fixing holes on ≈ 25mm centres. Hope this helps.
1879199
I cannot tell you the diameter but there is a seal for it. Perhaps the Amazon people know the diameter of the hole itself. Good Luck!
1626955
Sorry but I do not know the inside diameter. We have them sandwiched between two pieces of wood. They are all assembled.
1192192
The dimensions that it will fit into are 2 1/4" (or slightly less) by 5/8" Seems to be pretty good quality. I needed a larger one since I thought the 2 1/2" measurement was for the hole it fits in but it is the outside diameter.
742366
From hole center to center they are 14mm or very close to that. Hole diameter is just under 3mm
2143242
the diameter of the locking bar is 1/8 of an inch ; and the inside distance is 5/8 inches; so your opening slot (hole) should be larger than 1/8 of an inch for the lock to pass thru.
27016
The outer diameter of the gasket is 2.5 inches. The inside diameter is 2 inches. Hope this helps.
2168112
The inside diameter is 1 1/2", that's the distance across the opening at the center. However, I returned mine for a refund because the screws used to tighten the holder to the fixture did not protrude inward sufficiently to reach the fixture surface so as to anchor the holder in place.
1880947
Using a ruler, I measure the inside diameter of the small end at about 15mm, or 19/32 of an inch (a little more than half an inch). It's tighter and a different shape than the photo suggests, but hardly as tight as a pin point. It looks sort of like a tiny trumpet in reverse, because the air goes in the wide end.
48239
It is the standard size of all bigger gauges. I believe 3.5 or 3 5/8" hole. I can't remember exactly, but it is close to that.
2079096
Measure inside opening and make sure that the outside dimensions will cover the hole. The unit I purchased was a perfect fit for the whole house fan I purchased from home depot about 10 years ago.
1362809
I use a 3/8" drill bit when drilling my hole. I believe the inside diameter of the hole is the same or very slightly smaller. Hope this helps! :o)
1674229
Inside diameter is 2 inches. Has 6 verticle rubber strips inside to make a snug fit.
2200705
It looks like around 1/4 in. I also drilled another hole that worked for me.