UNSPSC 31161716: Locknuts

UNSPSC 31161716 Locknuts is a Commodity code for fastening hardware used across infrastructure construction and maintenance. State and local governments buy locknuts as component parts in large-scale construction and repair projects where bolted assembly requires vibration-resistant fastening. The issuing bodies soliciting under this code are municipal utilities, water authorities, public works departments, and infrastructure maintenance agencies that incorporate locknuts into structural, mechanical, and plumbing systems during capital improvements and facility upgrades.

The City of Lavonia, Georgia, posted a sealed competitive bid on April 24, 2026, for Water Treatment Plant 2026 Improvements (solicitation PE66940NONST2026000000005, due May 26, 2026). The project encompasses comprehensive modifications to the existing water treatment facility to increase treatment capacity to 3.0 million gallons per day, including modifications to the raw water pump station, installation of a new flash mixer and mixing basin, modifications to settling basins with plate settler systems, renovation of four filtration units with new media and control systems, upgrades to the chemical feed system including a new powder-activated carbon system, and modifications to clearwell storage tanks across two sites spanning 1.11 acres with a nine-month construction schedule. The procurement is subject to prevailing wage standards under the Davis-Bacon Act, Build America, Buy America (BABA) Act domestic-sourcing requirements, and DBE participation goals requiring 4.0% participation from both minority-owned and women-owned businesses. A pre-bid conference is scheduled for May 7, 2026, with written questions due by May 12, 2026. This is a substantial municipal utility infrastructure project typical of the scale and scope where locknuts are specified as component fasteners in bolted assemblies for pumps, filters, mixers, and tank appurtenances.