UNSPSC 31161639: Hanger bolt

A headless bolt that is designed to connect a round bar and hanger to tie up to the ceiling.

UNSPSC 31161639 Hanger bolt is a Commodity code that covers fasteners used in water infrastructure construction and repair, grounded in state and local procurement for water treatment plant upgrades and equipment assembly. State and local governments buy hanger bolts as component parts in water utility projects—securing piping, structural supports, and equipment mounts in treatment facilities and distribution systems. The issuing bodies soliciting under this code include municipal water utilities and city public works departments operating water treatment plants and related infrastructure. Work under the code centers on capital improvement projects for water systems, where hanger bolts function as consumable fasteners within larger construction scopes rather than standalone procurement items.

Recent activity appears concentrated in the Southeast and Southwest. The City of Lavonia, Georgia (operating under Fayette County jurisdiction) posted a sealed competitive bid on April 24, 2026 (due May 26, 2026) for comprehensive Water Treatment Plant 2026 Improvements including modifications to raw water pump stations, filtration units, chemical feed systems, and clearwell storage tanks—a nine-month construction project where hanger bolts would be specified components within the larger scope. The Eastern Municipal Water District in Riverside County, California posted RFQ 3930 on March 17, 2026 (due March 20, 2026) for Lineseal XP 36" Butterfly Valves with gasket and bolt nut sets, a direct-purchase specification that shows how fastener components are bundled into water utility equipment procurement. The code shows limited standalone solicitation activity; hanger bolts typically appear as bill-of-materials line items embedded in construction contracts and equipment specifications rather than as independent RFQs.