UNSPSC 31161716: Locknuts

UNSPSC 31161716 Locknuts (Commodity) covers fastening hardware that state and local governments procure both as discrete maintenance and repair supplies and as components embedded in larger construction and infrastructure projects. Recent solicitations show two distinct procurement patterns: transit authorities and municipal water systems buying locknuts as consumable parts in small quantities through standing purchase orders, and municipalities acquiring locknuts as specification items within capital construction contracts for facility upgrades. The Dallas Area Rapid Transit Authority (DART) has posted multiple locknuts and related fastener procurements since January 2026, including elastic stop nuts (1/4-28 zinc-plated), Grade 8 nuts (9/16"-18), and suspension spring fasteners, all purchased in packages of 25 to 100 units with Net 30 payment terms and FOB Destination shipping required. The City of Lavonia, Georgia's water treatment plant expansion project includes locknuts as specification components within a larger sealed-bid construction improvement contract posted in April 2026.

Activity is concentrated among transit authorities in Texas and municipal water infrastructure in Georgia. DART dominates the recent commodity-level procurement in the dataset, issuing four separate fastener and hardware purchase orders between January 21 and January 29, 2026, each with one-week response windows and submission through the BONFIRE platform. The Lavonia Water Treatment Plant 2026 Improvements project (sealed bid due May 26, 2026) represents the only larger-scope construction opportunity; it carries prevailing wage requirements, Davis-Bacon Act compliance, BABA Act domestic-sourcing mandates, and a 4.0% DBE participation goal. Riverside County, California issued a Request for Bid for Cla-Val parts (posted January 21, 2026, due February 13, 2026) that may include fastening components, though scope details are minimal. Locknuts under this code appear to move as high-velocity consumables through transit maintenance channels and as specification line items in utility infrastructure contracts, both environments requiring reliable, on-schedule delivery and exact grade and size compliance.