September 2007 Issue
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Can high strength bolts be hot-dip galvanized?
Most high strength bolts can be galvanized, however there are some exceptions. In the construction fastener industry, typically the phrase "high strength" refers to bolts that have been quenched and tempered (heat treated) to develop the proper strength requirements of a given specification. Two separate issues are involved in determining whether or not a high strength bolt can be galvanized. Read Full Story.
Fender Replacement - Port of Houston, Texas
The Turning Basin Terminal fender replacement at Wharf 16 was part of a $25 million Port of Houston improvement project. Each year, over 2,800 ships and barges use this convenient terminal to move products all over the world. A Houston civil contractor was awarded the job to remove and replace the deteriorating fenders at this wharf. Read Full Story.
ASTM A153/F2329 - Hot Dip Galvanizing
The ASTM A153 specification covers zinc coating (hot-dip) on iron and steel hardware. A newer and more appropriate specification developed in 2005 covering the requirement for hot-dip galvanizing of bolts, screws, nuts, washers and other threaded fasteners is ASTM F2329. It is not yet widely used since many of the ASTM specifications covering bolts, nuts and washers do not reference it.
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