Conversion purpose
Metric conversion for covered fasteners
Key features and intended use for this kit.
Metric conversion for covered fasteners
A2-70/A4-80 Stainless Steel
Metric maintenance & rebuilds
Converts the model from its original factory thread system to metric hardware for owners who intentionally want standardized metric fasteners and tools.
Not a stock-thread replacement kit: Choose this Metric Conversion kit only when intentionally converting to metric hardware. For screws that match the model’s standard factory thread system, choose the Standard Stainless Screw Kit instead.
Fits: Losi XXX-SCB 1/10 Electric 2WD SC Buggy (LOS03003)
OEM / model: LOS03003
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.
Choose one screw-kit typeChoose either this Metric Conversion kit or the standard Stainless Screw Kit for this RC model—not both. Do not mix metric and standard hardware.
View all verified kits for this model →Review what is included, installation notes, shipping details, and complete kit information.
Kit Contents & Installation
Convert one location at a time, compare the replacement with the original hardware, and start threads by hand.
Confirm the replacement length and thread engagement before tightening. Use blue threadlocker only on metal-to-metal threads; do not apply it to plastic.
After the first runs, inspect the converted 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:
Losi XXX-SCB 1/10 Electric 2WD SC Buggy (LOS03003)
Compatible RC Brand:
Losi
RC Vehicle OEM / Model Number(s):
LOS03003
RCScrewZ Kit Part Number:
los063m
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:
Metric Stainless Steel Screw Kit Compatibility:
Quick Fit Summary:
Compatible Brand: Losi
Fit: Model-specific fitment for Losi XXX-SCB Brushless RTR
Compatible RC Model/OEM Numbers: LOS03003
Scale: 1/10
Power Source / Fuel Type: Electric
Battery / Cell Count: Not currently verified.
Drive Type: 2WD
Vehicle Type: Short Course Buggy
Chassis: Losi XXX-SCB 2WD Brushless Chassis (LOS03003)
Era: Contemporary Era (2010-2019)
OEM / Models: LOS03003
RC Model Terrain: Off-Road: Dirt, Clay & Outdoor Tracks
This Kit Details:
SKU: los063m
MPN: los063m
Kit Type: Metric 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: LOS03003
Model Family Coverage: XXX-SCB, XXX
Product Benefits: Corrosion-resistant A2-70/A4-80 stainless hardware for clean rebuilds, race prep, restoration, and long-term service.
Configured as a model-specific metric conversion hardware kit.
Fitment Note: Use proper hex drivers and do not overtighten into plastic, composite, graphite, or aluminum.
Search-Friendly Notes: Losi XXX-SCB, brushless buggy, short course buggy, losi bearings; Losi parts; screw kit; 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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