

A sturdy flange‑head hex nut from Graco, ideal for secure fastening in industrial coating, spray or blast systems. It distributes clamping pressure evenly and resists loosening under vibration.
The Graco 115942 Flange Head Hex Nut is a heavy-duty flange nut — a hexagonal nut with an integrated wide flange acting as a built-in washer. It’s designed to distribute fastening pressure evenly and prevent loosening under vibration or uneven surfaces. The flange-nut design improves load distribution and fastening reliability.
Often listed as part number 115942. Available through spare-parts distributors; price typically in the range of ~US$50–52 depending on retailer and shipping.