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Graco 100015 Nut Hex Mscr

The Graco 100015 Nut Hex MSCR is a genuine OEM fastener designed for secure assembly in multiple Graco sprayers and washers. Ideal for maintenance or replacement of worn hardware.

  • Part Number: 100015
  • Thread Size: 1/4-20 UNC
  • Type: Hex Machine Nut
  • Fits: Graco Hydra-Clean, Line Driver, and Airless Sprayer models
  • Use: Secures brackets, clamps, and covers

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Compatible Machines

  • 224-626 (Series A) 23:1 Ratio Hydra Sprayer
  • 231-159 23:1 Ratio Hydra Sprayer
  • 231114 (Series A) 23:1 Ratio Hydra Sprayer
  • 226970 (Series B) 23:1 Ratio Hydra Sprayer
  • 231-133 (Series B) Gas Powered Airless Line Driver
  • 231-141 Gas Powered Airless Line Driver
  • 231-149 (Series C) 4.0 HP Gas Powered Airless Line Driver
  • 231-151 4.0 HP Gas Powered Airless Line Driver
  • 231-150 (Series C) 5.5 HP Gas Powered Airless Line Driver
  • 231-152 5.5 HP Gas Powered Airless Line Driver
  • 231-205 (Series A) Gas Powered Airless Line Driver
  • 3050 (800-681) Hydra-Clean Pressure Washer
  • 3540 (800-635) Hydra-Clean Pressure Washer
  • 3540 (800-636) Hydra-Clean Pressure Washer
  • 3540 (800-706) Hydra-Clean Pressure Washer
  • 4043 (800-637) Hydra-Clean Pressure Washer
  • 4043 (800-707) Hydra-Clean Pressure Washer
  • GH2560 (965168) Gas Hydraulic Airless Sprayer
  • GH3640 (687327) Gas Hydraulic Airless Sprayer
  • GH5030 (687100) Gas Hydraulic Airless Sprayer

Product Overview

The Graco 100015 Nut Hex MSCR is a genuine OEM hex machine nut used across multiple Graco assemblies. It secures covers, clamps, brackets, and other hardware in sprayers, line drivers, and pressure-wash systems.

Part Number 100015 – Nut, Hex MSCR
Thread / Form 1/4-20 UNC-2A/2B (as referenced in Graco manuals)
Typical Use General fastening on Graco spray equipment, line stripers, cleaners, and accessories
Category OEM fastener (hex machine nut)

Why choose OEM 100015?

  • Fit & function: matches original Graco hardware dimensions for reliable torque-up.
  • Versatile: used on a wide range of Graco models (see list above).
  • Service-manual backed: thread spec appears directly in Graco parts lists.

Quick Reference Table

Assembly Examples Common Companion Hardware Notes
Dispenser bars / brackets 100016 Lockwasher, 1/4" Pairing with lockwasher helps maintain clamp force under vibration.
Heater kits / clamp plates 100058 Hex cap screw Used where 1/4-20 studs/bolts are specified in manuals.
Surge tank mounts / shields 100902 Screw, 100270 Screw Appears in Graco surge-tank install references.

Fitment Tips

  • Confirm your machine’s parts list for 100015 before ordering.
  • Use correct torque; pair with the specified washer (often 100016 lockwasher) where called out.
  • Replace in sets if hardware shows wear, corrosion, or thread damage.

Frequently Asked Questions

 

In Graco parts descriptions it denotes a standard hex machine screw nut used with 1/4-20 machine-screw hardware in various assemblies.

Use OEM when possible. If substituting, match 1/4-20 UNC thread, strength/grade, material, and any washers specified in your Graco manual to maintain safety and performance.

Many assemblies call out 100016 Lockwasher (1/4") alongside 100015. Follow your specific parts diagram; use thread-locker only if specified.

It appears in multiple Graco parts lists (e.g., dispenser bars, heater kits, surge-tank mounts) with a 1/4-20 specification. Check your model’s manual for exact locations.

Verify thread engagement, replace worn hardware in pairs/sets, and torque to spec. Re-check after first use, especially on high-vibration assemblies.

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