UNSPSC 31161629: Round head bolt

A bolt with a round head shape.

UNSPSC 31161629 Round head bolt is a Commodity code covering fasteners—specifically bolts with rounded heads—that state and local governments procure as components within larger infrastructure projects and equipment installations. The work being solicited under this code reflects procurement of these fasteners as part of water treatment plant construction, pump station modifications, and water infrastructure upgrades. Issuing bodies purchasing round head bolts under this code include municipal water utilities and city governments managing water systems infrastructure. The City of Lavonia, Georgia and the Eastern Municipal Water District in Riverside County, California represent the jurisdictional mix—a municipality overseeing local water treatment and a regional water utility district managing broader water infrastructure operations.

The recent opportunities show concentrated activity in the water utilities sector across Georgia and California. The City of Lavonia issued an IFB (sealed competitive bidding) on April 24, 2026, with a May 26, 2026 deadline for Water Treatment Plant 2026 Improvements, a comprehensive nine-month construction project increasing treatment capacity to 3.0 million gallons per day and spanning modifications to pump stations, mixing basins, settling basins, filtration units, and clearwell storage tanks—work inherently requiring substantial fastener components including round head bolts for structural assembly. The Eastern Municipal Water District issued an RFQ on March 17, 2026, with a March 20, 2026 deadline for Lineseal XP 36" Butterfly Valves, which would use round head bolts in valve assembly and mounting. Both solicitations require delivery to California and Georgia locations respectively and reflect water infrastructure modernization activity. The source does not report recent opportunities from other states or from school districts, transit authorities, or other municipal issuing bodies, suggesting the code sees limited recent state and local procurement activity outside the water utilities segment.