UNSPSC 31161739: Weld or clinch nut

A nut welded or mechanically attached to a metal part for the purpose of joining multiple parts.

UNSPSC 31161739 Weld or clinch nut (Commodity) covers fastening hardware procured by state and local governments for maintenance, transit, water utility, and construction operations. Recent activity shows transit authorities and water districts acquiring nuts in bulk for inventory replenishment and repair operations—elastic stop nuts, Grade 8 hex nuts, M8 stainless-steel suspension spring nuts, and 9/16"-18 fasteners supplied in packages or boxes of 25 to 100 units. The Dallas Area Rapid Transit Authority (DART) has posted multiple nut and fastener procurements over a six-week window (January 21–February 5, 2026), suggesting routine consumables purchasing for fleet and facility maintenance. Issuing bodies include transit authorities, water districts, and county procurement offices. All procurements require FOB Destination shipping with freight included, Net 30 payment terms, submission through the BONFIRE bidding platform or sealed competitive bidding, and commercial warranties certifying merchantable quality and suitability for intended use.

Recent opportunities concentrate in Texas and California. DART in Dallas County has posted four nut and fastener IFBs between January 21 and February 5, 2026—NUT, 9/16"-18 GRADE 8 (due January 28, 2026), NUT, M8 ESNA HEX SSTL SUSPENSION SPRING (due January 28, 2026), NUT, ELASTIC STOP 1/4-28 ZINC (due February 5, 2026), and WASHER CUT 5/16" (due January 29, 2026)—all requiring BONFIRE registration and BidTable submission. The North Texas Municipal Water District Maintenance Department posted an IFB on July 9, 2026, for two Lincoln Frontier 400X diesel-driven welder/generators (due July 29, 2026), though the welder procurement does not align with the nut code's scope. Riverside County, California issued RFB3909 for Cla-Val parts inventory (posted January 21, 2026, due February 13, 2026). The City of Lavonia, Georgia posted a water treatment plant construction IFB (PE66940NONST2026000000005, due May 26, 2026) that encompasses facility upgrades but does not specifically identify nut procurement. Activity clusters in Texas transit and water utilities; the code shows established if modest repeat demand from DART.