Corrosion resistance
Rust-resistant stainless steel
Key features and intended use for this kit.
Rust-resistant stainless steel
A2-70/A4-80 Stainless Steel
Model-specific maintenance & rebuilds
Model-specific stainless hardware for maintaining and rebuilding this RC helicopter, matched to the listed model and OEM number.
Safety check: Confirm the manufacturer’s required hardware, torque, and thread-locking specifications before replacing safety-critical fasteners.
Fits: Kyosho Caliber 400 EP Electric RC Helicopter (20401)
OEM / model: 20401
In stock
Confirm this kit fits your RCMatch the RC model and OEM/model number shown above to your vehicle.
Match the RC model and OEM/model number below before ordering.
Review what is included, installation notes, shipping details, and complete kit information.
Kit Contents & Installation
Start threads by hand and seat screws fully to help prevent cross-threading.
Use blue threadlocker only on metal-to-metal threads; do not apply threadlocker to plastic.
After the first runs, inspect the hardware and retorque lightly as needed.
Details & Support
Over 99% positive over ~14,000 orders on eBay (last 12 months) — as of October 2025. View on eBay
Compatible RC Model:
Kyosho Caliber 400 EP Electric RC Helicopter (20401)
Compatible RC Brand:
Kyosho
RC Vehicle OEM / Model Number(s):
20401
RCScrewZ Kit Part Number:
kyo066
This model-specific stainless screw kit includes hardware for the verified RC chassis. Exact sizes, quantities, and screw styles vary by model.
This kit does not include items that require a different fitment, material, or hardware design:
Stainless Steel Screw Kit Compatibility:
Quick Fit Summary:
Compatible Brand: Kyosho
Fit: Model-specific fitment for Kyosho Caliber 400 EP Electric RC Helicopter, OEM/model code 20401.
Compatible RC Model/OEM Numbers: 20401
Scale: Not currently verified
Power Source / Fuel Type: Electric
Battery / Cell Count: Not currently verified
Drive Type: Rotor-driven helicopter
Vehicle Type: Electric RC Helicopter
Chassis: Kyosho Caliber 400 EP helicopter (20401)
Era: Not currently verified
OEM / Models: 20401
RC Model Terrain: Aerial Use
This Kit Details:
SKU: kyo066
MPN: kyo066
Kit Type: Stainless Steel Screw Kit
Screw Kit Piece Count: Not currently verified.
Product Material: A2-70/A4-80 stainless steel hardware
Product Color: Silver
OEM / Model Code / Alias Coverage:
Model Family Coverage: Caliber, Caliber 400, EP Caliber 400
Product Benefits:
Fitment Note: Legacy kit note indicates this screw kit may be configured as a metric-conversion style hardware kit. Metal parts may need to be re-tapped for metric threads, and standard-thread axle or wheel hardware remains standard where applicable.
Search-Friendly Notes: Compatible Kyosho Caliber 400 EP parts for RC maintenance, rebuilds, restoration, and model-specific fitment lookup.
Confirm your exact RC model, chassis configuration, and vehicle OEM/model number where applicable before ordering.
Do not assume fitment for custom conversions, mixed-chassis builds, modified vehicles, or unverified model variations.
Contact J-M SUPPLIES RC Parts Store before ordering when your vehicle does not match the compatibility details shown above.
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These kits are verified for the same exact RC model and OEM/model number.