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Graco 114331 SEMS PNH Machine Screw

The Graco 114331 SEMS PNH Machine Screw is an OEM fastener with a captive washer, designed to securely hold internal components in Graco equipment. Key information at a glance:

  • Part Number: 114331
  • Type: SEMS PNH Machine Screw (with captive washer)
  • Thread / Size: 6‑32
  • Compatibility: Reactor E‑20, E‑30, E‑XP1, E‑XP2, LineLazer III/IV 3900 / 5900
  • Function: Fastens internal parts securely while distributing load
  • Material: OEM-grade steel

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Graco 114331 SEMS PNH Machine Screw — OEM Replacement Part

Compatible Machines

  • Graco Reactor E‑20 Plural‑Component Proportioner
  • Graco Reactor E‑30 Plural‑Component Proportioner
  • Graco Reactor E‑XP1 / E‑XP2
  • Graco LineLazer III Models 3900 / 5900
  • Graco LineLazer IV Models 3900 / 5900

Key Features

Part Number 114331
Description SEMS PNH Machine Screw (with captive washer)
Thread / Size 6‑32
Function Fastens internal parts securely in Graco equipment
Material OEM-grade steel with plating

Usage & Maintenance

The Graco 114331 Machine Screw is designed for reliable fastening of internal components in various Graco sprayers and proportioning systems. Best practices include:

  • Confirm part number 114331 is required for your machine model.
  • Ensure threads and washer surfaces are clean before installation for proper torque and load distribution.
  • Use only OEM screws to maintain warranty and system integrity.

Frequently Asked Questions

The 114331 screw is a pan-head SEMS machine screw with captive washer, used to fasten internal components securely in Graco proportioners and LineLazer systems.

Verified machines include Graco Reactor E‑20, E‑30, E‑XP1, E‑XP2, and LineLazer III/IV models 3900 / 5900. It may be used in other Graco equipment requiring a 6‑32 SEMS PNH screw.

Using the OEM 114331 ensures correct dimensions, captive washer function, and load distribution. Third-party screws may compromise system integrity and void warranty.

  • Check your machine’s parts diagram for part number 114331.
  • Use Graco’s Parts Book or Parts Search tool.
  • Contact an authorized Graco distributor with your machine model and serial number for confirmation.

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