UNSPSC 31161734: Slotted round nut

A type of fastener round in shape with a slot in its main diameter.

UNSPSC 31161734 Slotted round nut is a Commodity code under which state and local governments procure fastening hardware—principally nuts and related fasteners—for maintenance, repair, and capital improvement projects. The recent opportunities show a sharp divergence between the code's nominal scope and actual buying patterns: the Dallas Area Rapid Transit Authority dominates visible activity with four separate purchase orders posted in January 2026 for elastic stop nuts, hex nuts, Grade 8 nuts, and suspension springs—all routine consumable fastener procurements in small unit packages (boxes and packages of 25 to 100 units) shipped FOB Destination on Net 30 terms. A single major construction opportunity from the City of Lavonia, Georgia (sealed competitive bid, due May 26, 2026) involves water treatment plant improvements spanning two sites with comprehensive modifications to pump stations, filtration units, and chemical feed systems; this procurement is unrelated to slotted round nuts and appears miscoded. Riverside County, California posted an RFB in January 2026 for Cla-Val parts inventory, also outside the code's core fastener scope. The issuing bodies are predominantly transit authorities and county/municipal entities; DART appears as a repeat buyer, suggesting the code captures routine maintenance supplies for transit operations.

Recent activity concentrates in Texas (Dallas Area Rapid Transit Authority, January 2026) and California (Riverside County, January 2026), with Georgia representing an outlier project outside the code's actual scope. Representative recent opportunities include DART's solicitation 2097736 for elastic stop nuts, 1/4-28 zinc-plated, 100-unit packages, due February 5, 2026 (IFB); DART solicitation 2097554 for Grade 8 nuts, 9/16"-18, 25-unit boxes, due January 28, 2026 (IFB); and DART solicitation 2097609 for M8 hex fasteners and suspension springs, due January 28, 2026 (IFB). All DART procurements mandate FOB Destination with freight included, Net 30 payment, triplicate invoice submission, and compliance with Texas foreign-entity and Israel-boycott certifications; no set-asides or DBE requirements are specified. The code shows low overall volume and appears concentrated in small, routine fastener purchases for transit maintenance rather than slotted-round-nut applications specifically.