Multiquip 957230805500 Flange Bolt 8X55

The Multiquip 957230805500 is a genuine OEM Flange Bolt 8X55 designed for a wide range of Multiquip, Whiteman, Essick, and STOW equipment including concrete mixers, plate compactors, diaphragm pumps, centrifugal pumps, and walk-behind power trowels. As an authentic OEM fastener, it meets the original engineering specification for thread pitch, shank length, and flange geometry. This bolt fits models across several product families including MC-42S, MVC-64HW, MVH-R60H, MVH-R60W, CA4HM, QP2H, MQD2H, and many more — making it a high-volume service item worth keeping in stock. Sourced directly through authorized distribution, the part ensures you are installing the correct hardware the first time.

Key Features

• Genuine OEM Fastener Grade — Manufactured to the exact thread class, flange diameter, and tensile specification called out in the original Multiquip parts documentation — no guesswork on hardware grade.
• Direct-Fit Installation — The integrated flange distributes clamping load evenly across the mating surface, seating flush without the need for a separate washer in flange-mount applications.
• Broad Cross-Family Fitment — Confirmed for concrete mixers (MC-42S, EC-42S, CMS-44S, WC-42S), plate compactors (MVC-64HW, MVH-R60H, MVC64VHW), diaphragm and centrifugal pumps (MQD2H, QP2H, CP-20H), and walk-behind trowels (CA4HM, CA4HC).
• Maintains Structural Integrity at Connection Points — A correctly torqued flange bolt holds critical assemblies rigid under vibration and load; a worn, stretched, or incorrect bolt can allow joint movement that leads to accelerated component wear.
• High-Use Service Part — This bolt appears across multiple Multiquip product families, making it a practical addition to any service truck or parts inventory supporting mixed Multiquip fleets.

A flange bolt combines a standard hex-head cap screw with an integrated washer-style flange beneath the head, eliminating the need for a loose flat washer and ensuring even load distribution across the fastened joint. In construction equipment operating under continuous vibration — such as plate compactors, concrete mixers, and diaphragm pumps — maintaining proper clamp force at critical joints is essential to keeping assemblies tight and preventing fatigue cracking at bolt holes. When a flange bolt stretches, corrodes, or is replaced with an incorrect hardware grade, joint loosening can occur rapidly, leading to misalignment, noise, accelerated wear on adjacent components, and potential equipment failure in the field.

Have questions about fitment or need help confirming compatibility? Contact the DHS Equipment parts team for assistance.

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.