Re: [TowerTalk] Rohn anchor bolts, grade?

[JVarney <jvarn359@gmail.com>]

J-bolts are essentially obsolete.  When the 2014 version of the
ACI code came out, the design pullout strength of J-bolts were
sharply reduced based on laboratory results that showed that
concrete is crushed around the inner elbow of the J-shape.

Headed bolts are preferred now. I would ask Rohn if they feel
the J-bolts continue to meet the latest code standards and if
they have a recommended headed bolt substitute.

73 Jim K6OK

WW3S wrote: Yep, 1/2x12bb are the ones……grade 36 ?
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