Please wait while we process your order...

Product successfully added to your cart.
Cart Image

Quantity in Cart: 1

Continue Shopping Shopping Cart
Item removed from Cart
X
 
×
📢 From June 8th to 25th, phone support will be limited. For assistance, please email us and we will respond as promptly as possible. Orders will continue to be processed normally.

sprayersandparts Logo

Product Image

Graco 115644 Screw Mach Hex Washer HD

The Graco 115644 Screw Mach Hex Washer HD is a durable OEM‑machine screw with integrated washer head — used to securely mount pump housings, valve covers or other components in Graco spray/pump systems.

  • Machine screw with built‑in hex washer head
  • Used in pumps & spray‑system assemblies for secure fastening
  • Ensures load distribution, reduces stress under pressure/vibration

$2
0
Based on 0 reviews
5 ★
0%
4 ★
0%
3 ★
0%
2 ★
0%
1 ★
0%

Compatible Assemblies for Graco 115644 Screw Mach Hex Washer Head

The Graco 115644 Screw Mach Hex Washer HD is a genuine OEM-specified fastener designed for secure mounting in Graco pump and spray systems. Its built-in washer head helps spread load and maintain tight fastening under pressure or vibration.

  • Graco pneumatic or diaphragm pumps where part #115644 is listed for inline covers, housings or valve assemblies
  • Sprayer and fluid-handling systems requiring machine-screw mounting with washer-head for pressure-safe, vibration-resistant fastening
  • Any Graco equipment module where the parts diagram specifies “Screw, Mach, Hex Washer Hd – 115644” for structural or cover mounting

Frequently Asked Questions

The built-in washer head spreads the load over a larger area, reducing stress on housings or covers — especially important in high-pressure or vibration-prone systems.

Yes — 115644 appears in official Graco spare-parts catalogs as “SCREW, MACH, HEX WASHER HD,” confirming its OEM status.

Payment Method   Payment Method   Payment Method   Payment Method 

ADDRESS