Multiquip 21017 HHC Screw 3/8-16 x 3.25 Full Thread GR5

The Multiquip 21017 is a genuine OEM HHC Screw 3/8-16 x 3.25 Full Thread GR5 designed for a wide range of Multiquip and Whiteman walk-behind power trowels, flat saws, and pavement saws including the J36, JA, B46, CA4HC, BS46, JS36, PRO36, PRO46, SP1, and CD6 series. As an authorized Multiquip OEM part, the part delivers the exact thread pitch, grip length, and Grade 5 tensile rating specified for these machines. Sourced directly through DHS Equipment, this fastener ships as a genuine replacement to keep your equipment performing as designed. Verify your model code against the fitment list before ordering to confirm compatibility.

Key Features

• Grade 5 Tensile Strength — Medium-carbon steel construction meets Grade 5 torque and load requirements, holding critical assemblies securely under the vibration stress common to trowel and saw operation.
• Full Thread Engagement — The 3.25-inch full-thread configuration maximizes thread contact across the full fastener length, providing consistent clamping force without relying on a shank for grip.
• Exact OEM Specification — Genuine Multiquip part this part matches the original 3/8-16 thread standard specified at the factory, ensuring proper torque values are achievable without re-tapping or adapter hardware.
• Broad Fitment Across Trowel and Saw Families — Compatible with J36, JA, B46, BA, CA, BS46, JS36, PRO36, PRO46, HPHA, HPLA, SP1, SP15, CD6, and CD605 series equipment, making it a practical stock item for mixed fleets.
• Prevents Assembly Failure — A stripped, incorrect, or under-spec fastener in a trowel or saw assembly can cause guard misalignment, blade slippage, or housing separation; using the correct OEM-rated screw maintains structural integrity throughout the service interval.

The HHC Screw 3/8-16 x 3.25 Full Thread GR5 is a hex head cap screw used to secure structural and mechanical assemblies on walk-behind trowels and flat or pavement saws. Its full-thread design means the fastener grips along its entire length, which is particularly important in applications where vibration could work a partial-thread screw loose over time. When this type of fastener wears, stretches, or is replaced with an incorrect grade or thread pitch, the joint it holds can loosen under load — leading to component misalignment, accelerated wear on adjacent parts, or unsafe operating conditions.

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.