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RE: HS bolts[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: RE: HS bolts
- From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
- Date: Mon, 2 Oct 2000 09:17:38 -0500
Mark, The correct specification for A307 anchor rods is F1554-36 ksi. The allowables should be predicated on A36 material as opposed to A307. A 307 bolts have machine forged heads and require additional testing as a bolt product. This will include testing of the bolt head according to the A307 specification. F1554-36 ksi anchor bolts will generally have threaded ends and will use a nut for anchorage. Longer headed bolts can be manufactured by forming the heads using a "hot-head" process, but that is generally more expensive and less reliable than using a nut on a threaded rod. F1554- 36 ksi bolts are generally made to order and have no typical length. I have used HS anchor bolts (F1554 - 105 ksi) many times on commercial, industrial, and heavy industrial structures. They are very common in the petrochemical and vessel and tank industry. Regards, Harold Sprague > -----Original Message----- > From: Mark Pemberton [SMTP:Markp(--nospam--at)lbdg.com] > Sent: Thursday, September 28, 2000 1:32 PM > To: 'seaint(--nospam--at)seaint.org' > Subject: HS bolts > > Does anyone know why high strength bolts are not > typically used for anchor bolts? Also, what's the > maximum readily available length of a typical > headed anchor bolt (A307)? > > Mark Pemberton, P.E.. >
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