Does anyone know what size bolt is used to hold the upper bell housing to the lower housing in a Ham IV? Marv K7IU _______________________________________________ ____________________________________
The Ham IV Manual identifies those screws as: p/n 5105700 #12-24 x 3/4" 73, ... Joe, W4TV Marv K7IU _______________________________________________ _______________________________________________ Tow
They are #12-24 x 3/4" - per 1987 Telex Ham IV manual. I was told they are a odd size. I have a set of 4 on order from C.A.T.S. ($4.00) if the USPS would ever get them here....3 weeks and counting.
Author: kj6y--- via TowerTalk <towertalk@contesting.com>
Date: Tue, 9 Feb 2021 17:37:03 +0000 (UTC)
I tried all over the internet to find those screws. I did get some from Hygain/MFJ. I had a brand new Ham IV on an MA-40 mounted on top and the screws holding the top and bottom pieces together came
Looks like Bolt Depot has them. https://www.boltdepot.com/ No affiliation just a happy customer 73, Joe kk0sd The Ham IV Manual identifies those screws as: p/n 5105700 #12-24 x 3/4" 73, ... Joe, W4TV
I've long believed that just about every fastener in an antenna system should have Loctite on the threads. How many neglected tribanders have you seen with elements askew? That won't happen if there'
Those bolts do seem to be a bit hard to find. According to Fastenal's website, they have them in stainless socket head cap screws for around $2.50 apiece. And they say there is no inflation. I wonder
12-24 is not that unusual, though unless space was at a premium I would just use 1/4" fasteners in their place. My local hardware stores stock that size, though I'm not sure about SS. McMaster Carr h
Marv - Had a similar problem ~3 yrs ago w/ a NEW Ham IV bought from HY Gain. It was mounted internally in my TX-472 and turning a 4 El SteppIR. A few mos after install, I went up the tower to see why
Unless you're buying one bolt, $2.50 each is ridiculous. #12-24 x 3/4 is a strange size to use however they are not difficult to find at hardware suppliers and are typically <$0.50 each. You can even