UNSPSC 31161631: Shoulder bolt

A product having the head with a covering metal sheath that enables the bolt to move, slide, and pivot.

UNSPSC 31161631 Shoulder bolt is a Commodity code that describes fastening hardware for industrial and municipal infrastructure applications, though recent state and local procurement activity shows little direct solicitation under this specific code. The two recent opportunities posted against this code involve water treatment infrastructure but do not center on shoulder bolts as a primary procurement driver. The City of Lavonia, Georgia issued a sealed competitive bid (IFB) on April 24, 2026, for Water Treatment Plant 2026 Improvements—a comprehensive facility upgrade including modifications to pump stations, mixers, settling basins, filtration units, and chemical feed systems with a nine-month construction schedule and DBE participation goals of 4.0% for minority-owned and women-owned businesses. The Eastern Municipal Water District in Riverside County, California posted an RFQ on March 17, 2026, for Lineseal XP 36" Butterfly Valves (Class 250B) with gaskets and bolt nut sets, due March 20, 2026, with F.O.B. delivery to the District's warehouse in Perris, California. Both solicitations touch utilities and water infrastructure, where fasteners do play a role, but neither positions shoulder bolts as a distinct procurement line item.

Issuing bodies sourcing under this code include municipal water utilities and city engineering departments engaged in infrastructure upgrades across the South and West. Geographic activity in the recent data spans Georgia and California, reflecting water treatment facility modernization in regions managing capacity and compliance upgrades. The mismatch between the code's nominal scope (shoulder bolts) and the actual solicitations (water plant construction and valve procurement) suggests that either the code has been applied inconsistently to these opportunities or that shoulder bolts represent a minor subcomponent within larger water infrastructure contracts. For firms focused on fastener supply, this code shows limited standalone activity in current state and local procurement; shoulder bolts would more likely be bid as a sub-item within broader construction or equipment procurement rather than as a direct commodity buy.