Multiquip 73431100351 Hex Screw M10

The Multiquip 73431100351 Hex Screw M10 is a genuine OEM fastener designed for ST4, ST6, ST41230, ST41460, ST61230, and ST61460 submersible pump models. As a factory-sourced component, it meets the exact thread pitch, grade, and dimensional tolerances specified for these pumps, ensuring a secure, rattle-free connection where it counts. DHS Equipment supplies this part direct, so you can be confident you're getting the correct screw the first time.

Key Features

• OEM-Grade Fastener Integrity — Manufactured to the exact M10 thread specification and material grade called out by Multiquip for these submersible pump assemblies, not a generic hardware-store substitute.
• Drop-In Replacement — Matches the original hex drive profile and thread engagement length, so it seats and torques correctly without reworking the mounting points.
• Broad Submersible Pump Fitment — Confirmed for ST4, ST6, ST41230, ST41460, ST61230, and ST61460 pump models, covering both 4-inch and 6-inch submersible pump families.
• Maintains Pump Integrity Under Submersion — A correctly torqued, properly graded fastener keeps housings and covers sealed against water ingress; a stripped or undersized screw can compromise the pump's internal sealing and lead to premature motor failure.

Hex screws in a submersible pump serve as the primary fasteners holding the pump housing, motor casing, and end covers together. In a submerged application, these screws must maintain consistent clamping force against gaskets and O-rings to prevent water from reaching the motor windings. When a screw is damaged, corroded, or replaced with an incorrect grade or thread pitch, clamping pressure becomes uneven, seals can weep, and internal components become vulnerable to moisture damage that can take the entire pump out of service.

For help confirming this part fits your specific unit, contact the DHS Equipment team with your model and serial number.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.