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, repairing, and rebuilding this RC vehicle.
Fits: Kyosho Ultima 1/10 Electric 2WD Buggy (3115)
OEM / model: 3115
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 Ultima 1/10 Electric 2WD Buggy (3115)
Compatible RC Brand:
Kyosho
RC Vehicle OEM / Model Number(s):
3115
RCScrewZ Kit Part Number:
kyo073
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 Ultima 1/10 Electric 2WD Buggy, OEM/model code 3115.
Compatible RC Model/OEM Numbers: 3115
Scale: 1/10
Power Source / Fuel Type: Electric
Battery / Cell Count: Not currently verified
Drive Type: 2WD
Vehicle Type: 1/10 Electric 2WD Off-Road Racing Buggy
Chassis: Kyosho Ultima buggy chassis (3115)
Era: Early Classics (1980-1989)
OEM / Models: 3115
RC Model Terrain: Off-Road: Dirt, Clay & Track
This Kit Details:
SKU: kyo073
MPN: kyo073
Kit Type: Stainless Steel Screw Kit
Screw Kit Piece Count: 210+ Piecess
Product Material: A2-70/A4-80 stainless steel hardware
Product Color: Silver
OEM / Model Code / Alias Coverage:
Model Family Coverage:
Product Benefits:
Fitment Note: This fitment is for the original Kyosho Ultima 3115 and is not intended for Ultima II 3118 or later variants.
Release Date: 1986 Release
Search-Friendly Notes: Compatible with Kyosho builders searching by model name, series, and OEM/model number for the correct RCScrewZ screw kit or bearing kit.
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.