Multiquip 2101 HHC Screw 3/8-16 x 3-1/4 Full Thread Grade 5

The Multiquip 2101 HHC Screw 3/8-16 x 3-1/4 Full Thread Grade 5 is a genuine OEM fastener used across a broad range of Multiquip, Whiteman, Essick, and Mayco equipment. As a full-thread Grade 5 hex head cap screw, it meets the tensile and torque requirements specified for the original assembly. This fastener is confirmed for use on walk-behind and ride-on power trowels, mortar and concrete mixers, concrete pumps, rollers, power buggies, and trash pumps — including models CA4HC/CA5BC, J3036H55, BS90C, BH11C, BH90C, JS60C. Sourcing the correct OEM-spec fastener ensures the joint holds to design load without stripping or fatigue failure.

Key Features

• Grade 5 Tensile Strength — Full-thread Grade 5 construction delivers the minimum 120,000 psi proof load required for structural and mechanical joints on Multiquip equipment.
• Full-Thread Engagement — The 3/8-16 x 3-1/4 full-thread configuration maximizes thread engagement across varying stack-up thicknesses, allowing secure fastening without a shoulder gap.
• Genuine OEM Part — Sourced directly from Multiquip, part 2101 matches the original material grade, thread pitch, and head dimensions called out in the factory bill of materials.
• Broad Cross-Equipment Fitment — Confirmed for walk-behind trowels (CA4HC, JH90C, BS90C), ride-on trowels (HHN31V, HHN34TVD), mixers (WM70SLF, WM90PLF, EM120), concrete pumps (LS300GK, LS600), rollers (AR13H, V305EH), power buggies (WBH-16, WTB-16), and trash pumps (MQ600H, MQ62TDD).
• Hex Head Cap Design — The standard HHC hex profile accepts common wrenches and sockets, making installation and removal straightforward during maintenance or rebuild.

A hex head cap screw is a threaded fastener used to clamp two or more components together within a mechanical assembly. The 3/8-16 designation refers to a 3/8-inch nominal diameter with 16 threads per inch — a coarse-thread standard widely used in construction equipment frames, guards, mounting brackets, and covers. Full-thread screws carry thread all the way to the head, which provides maximum grip when fastening into a nut or threaded hole with minimal material thickness. When a fastener of the wrong grade or thread pitch is substituted, joint clamp load drops, vibration loosens the connection prematurely, and structural failures can result — making it important to replace with the correct OEM-specified screw.

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.

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