For Want of a Bolt...

by J. A. MacDonald, Assoc. Ed.; Civil Engineering, New York, NY 10017,

Serial Information: Civil Engineering—ASCE, 1988, Vol. 58, Issue 10, Pg. 61-61

Document Type: Feature article


While counterfeit bolt-nut imports make sensational headlines, civil engineers should be more concerned with actual construction problems that have arisen in the past decade. Experts say these problems range from the widely publicized mismarked and mismatched bolt-nut assemblies flooding the U.S. market to improper installation and inspection. The solution lies with the structural engineer, who is supposed to make sure that proper engineering specifications are being followed in the fabrication, finishing, testing, installation and inspection of the bolted connections he or she has designed. There is little agreement about how serious and pervasive these problems are, but much agreement that corrective measures are required. Of some help are tracing systems that several U.S. manufacturers have instituted to assure the purchase that a fastener lot fully complies with specifications throughout the entire process.

Subject Headings: Bolts | Inspection | Bolted connections | Agreements and treaties | Floods | Fabrication | Material tests

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