UNSPSC 31161740: Bolt nut

A combined component used to tighten down on the bolt shaft.

UNSPSC 31161740 Bolt nut is a Commodity code covering individual fasteners—specifically nuts in standard metric and imperial sizes, materials, and finishes—purchased by transit authorities, water utilities, and county governments for vehicle maintenance, infrastructure repair, and construction projects. State and local buyers treat bolt nuts as consumable repair and maintenance stock, procurement-managed through purchase orders with tight delivery windows and FOB Destination freight terms. Issuing bodies include regional transit authorities (Dallas Area Rapid Transit Authority), municipal water districts (Eastern Municipal Water District), and county purchasing offices (Riverside County), each managing standing inventory or project-specific supply orders. The code sees activity across multiple jurisdictions but concentrates among repeat buyers in Texas and California that operate large vehicle fleets and water infrastructure requiring continuous fastener supply.

Recent opportunities demonstrate the transactional nature of the code: Dallas Area Rapid Transit Authority issued two separate purchase orders for nuts in May 2026 (solicitation 2098972, #10-24 stainless steel slotted, due May 20) and January 2026 (solicitation 2097703, ESNA 1.25-7 steel motor installation and truck assembly nuts, due February 13), both requiring BONFIRE registration, FOB Destination pricing, Net 30 payment terms, and delivery compliance tied to operational schedules. Eastern Municipal Water District in Riverside County issued RFQ 3930 in March 2026 for Lineseal XP 36" butterfly valves with bolt nut sets, due March 20, 2026, specifying F.O.B. Destination delivery to the Perris warehouse. Riverside County also posted RFB 3909 in January 2026 for miscellaneous Cla-Val parts inventory. While a water treatment facility upgrade in Lavonia, Georgia (City of Lavonia, sealed-bid IFB, due May 26, 2026) touched infrastructure construction at scale, bolt nuts represent incidental components in that project rather than primary procurement focus. The code shows steady low-dollar, high-frequency purchasing typical of maintenance and repair consumables, with response windows of one to three weeks and no disclosed set-asides or award values.