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 Optima 2016 1/10 Electric 4WD Buggy (30617B)
OEM / model: 30617B
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 Optima 2016 1/10 Electric 4WD Buggy (30617B)
Compatible RC Brand:
Kyosho
RC Vehicle OEM / Model Number(s):
30617B
RCScrewZ Kit Part Number:
kyo174
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 Optima 4WD 2016 Re-Release, OEM model 30617B.
Compatible RC Model/OEM Numbers: 30617B
Scale: 1/10
Power Source / Fuel Type: Electric
Battery / Cell Count: Not currently verified
Drive Type: 4WD
Vehicle Type: 1/10 Electric 4WD Off-Road Buggy
Chassis: Kyosho Optima 4WD Legendary Series Chassis (30617B)
Era: Contemporary Era (2010-2019)
OEM / Models: 30617B
RC Model Terrain: Off-Road: Dirt, Grass & Vintage Buggy Terrain
This Kit Details:
SKU: kyo174
MPN: kyo174
Kit Type: Stainless Steel Screw Kit
Screw Kit Piece Count: 195+ Pieces
Product Material: A2-70/A4-80 stainless steel hardware
Product Color: Silver
OEM / Model Code / Alias Coverage:
30617B
Model Family Coverage:
Optima, Legendary Series
Product Benefits:
Fitment Note:
Confirm your Kyosho model number matches 30617B before ordering. This kit is model-specific and is not intended as a universal hardware or bearing assortment.
Search-Friendly Notes:
Designed for Kyosho Optima 4WD 2016 Re-Release owners searching by model name, chassis family, or OEM number 30617B.
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.