On 6/25/2013 7:37 PM, Grant Saviers wrote:
Great to have some technical specs for "snug tight". Thanks.
A hammer struck spud wrench? I would think the spec means a typical
tapered spud wrench about 18" long for a 1" bolt. I'd estimate
ironworkers I've met can (easily - no insult intended) apply 80 to 100#
force to a wrench so torques in the 100 to 150 ft-lb range might be a
numerical range for "snug tight". IIRC the ironworkers that erected my
steel building had a 250 ft-lb target for 3/4" A325 bolts, thus I
assume they are "slip critical" joints. (They used a big torque wrench).
Just don't confuse the two technically precise terms of "snug tight" and
"hand tight" unless tightened by technically certified bolt tighteners/
Iron workers.
73
Roger (K8RI)
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