Graco 100258 Screw

Graco 100258 Screw — Specs, Uses & Compatibility

Compatible Machines

The Graco 100258 Screw is specified in the following Graco equipment parts lists. Always match by part number and location in the exploded diagram before ordering.

• 5 Gallon Duo Paint Sprayer — Parts manual 306713; used in the Standard Pump/Displacement Pump assembly (Qty varies; commonly 6 pcs).
• LINE LAZER LD Light Duty Striper (Model 235-032, Series B) — Parts manual 308203; used around the pump/engine shield area (4 pcs in listed sub-assembly).

What is the Graco 100258 Screw?

The Graco 100258 is a fillister-head machine screw sized #8-32 × 3/8" (10 mm). It’s a small fastener used throughout Graco assemblies (notably pump and drive sub-assemblies) where a low-profile, high-strength machine screw is required.

Key Specifications

Fitment Guidance

• Verify the exploded diagram reference and quantity for your exact model revision (Series A/B/C, etc.).
• Do not substitute look-alike #8-32 × 3/8" screws with different head styles (e.g., pan, oval) unless the parts manual permits it.
• Replace in sets where the assembly requires multiple identical fasteners to maintain clamp load and alignment.

Installer Notes

• Start fasteners by hand to avoid cross-threading into cast or aluminum components.
• If specified by the manual, apply appropriate thread sealant or threadlocker only where called out.
• Tighten evenly in a criss-cross pattern when securing covers/plates for proper seating.

Frequently Asked Questions