Multiquip 42349 HFS M6-1.0 x 40 Screw (8.8 Grade) - OEM Replacement Part

This high-tensile hex flange screw secures critical trowel arm components in Multiquip power trowels, including blade pitch adjustment assemblies and trowel arm mounting hardware. The M6-1.0 x 40mm specification with grade 8.8 tensile strength ensures reliable fastening under the rotational forces and vibration experienced during concrete finishing operations.

In the MD80 trowel assembly, proper fastener integrity is essential for maintaining correct blade pitch and trowel arm alignment. The manual specifies that trowel arm components must be securely fastened to prevent dished finishing effects on concrete surfaces and uneven blade wear. During trowel arm reassembly procedures, all mounting hardware should be inspected and replaced if damaged, as loose or worn fasteners can affect the critical 0.005-inch (0.127mm) tolerances required for proper spider alignment and wear plate contact.

The grade 8.8 rating provides the clamping force necessary to maintain proper alignment of bronze bushings, trowel arm levers, and adjustment mechanisms during continuous operation. This fastener is used in conjunction with trowel arm adjustment procedures outlined in the Multiquip service protocol.

Compatible models include:

• MD80 Ride-On Trowel
• PRX Series Trowels

Genuine Multiquip OEM part, sold by an authorized dealer.