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 Concept 30 SRX Class 30 Nitro RC Helicopter (21302)
OEM / model: 21302
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 Concept 30 SRX Class 30 Nitro RC Helicopter (21302)
Compatible RC Brand:
Kyosho
RC Vehicle OEM / Model Number(s):
21302
RCScrewZ Kit Part Number:
kyo092
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 Concept 30 SRX Class 30 Nitro RC Helicopter, OEM/model code 21302.
Compatible RC Model/OEM Numbers: 21302
Scale: Class 30
Power Source / Fuel Type: Nitro & Glow Fuel
Battery / Cell Count: Not applicable - nitro powered.
Drive Type: Rotor-driven helicopter
Vehicle Type: Class 30 Nitro RC Helicopter
Chassis: Kyosho Concept 30 SRX Helicopter (21302)
Era: Not currently verified
OEM / Models: 21302
RC Model Terrain: Aerial Use
This Kit Details:
SKU: kyo092
MPN: kyo092
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:
Verified OEM / Model Codes: 21302
Model Series: Concept, Concept 30, Concept 30 SRX
Model Family Coverage:
Designed for the Kyosho Concept 30 SRX family shown in this listing. Do not assume fitment with other Kyosho helicopter variants unless your OEM/model code matches.
Product Benefits:
A2-70/A4-80 stainless steel hardware helps resist rust and corrosion during rebuilds, maintenance, and restoration work.
Model-specific hardware selection helps avoid generic assortment guesswork.
Installation tip: use proper hex drivers, start threads carefully, and do not overtighten into plastic, aluminum, or composite parts.
Fitment Note:
Confirm your Kyosho model and OEM/model code before ordering. This kit is intended for Kyosho Concept 30 SRX fitment with OEM/model code(s) 21302.
Legacy kit-specific note: If this kit is used as a metric conversion, metal parts may need to be re-tapped for metric threads; wheel nuts remain standard-thread for axles.
Search-Friendly Notes:
Useful for Kyosho helicopter owners searching for Concept 30 SRX stainless screws, metal shielded bearings, and model-specific RC maintenance parts.
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.
Know another RC owner who could use this kit? Send them this exact product page.
These kits are verified for the same exact RC model and OEM/model number.