[TowerTalk] U-bolts for holes with 1 and 7/8 centers

[K8RI on TT]

On 6/13/2011 12:00 AM, w3qx at qsl.net wrote:
> All
>
> An otherwise very good 70cm yagi has a boom and clamp plate with
> pre-drilled quarter-inch holes:  their _centers_ are 1 and 7/8 inches
> apart.  The correct u-bolt was missing.
William,

I've used the same method as Gerald. Expand and straighten a smaller 
1/4" U-bolt, but I wonder if perhaps the boom isn't designed for a 
metric U-bolt.

73

Roger (K8RI)
> Don't ask how how many places (including McMaster) and how long I've
> looked for a u-bolt with centers of its [ends] 1 and 7/8 inches
> apart.  I've learned there are about a half-dozen common u-bolt
> sizes, and for that dimension none come close.
>
> Help will be appreciated.  Bolt stock section 3/16 inch should be
> good; 1/4 inch would be very tight.
>
> Best regards,
> William W3QX
>
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>    -30-
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