Conversion purpose
Metric conversion for covered fasteners
SAVE
$5.01
$5.01
Why Choose This Kit
Key features and intended use for this kit.
Verified material
A2-70/A4-80 Stainless Steel
Designed use
Metric maintenance & rebuilds
Metric ConversionRead metric warning
RCScrewZ Metric Stainless Steel Screw Kit los055m for Losi 810 RTR 1/8 Nitro 4WD Off-Road Buggy (Metric Conversion) (LOSB0021) | SET
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 810 1/8 Nitro 4WD Buggy (LOSB0021)
OEM / model: LOSB0021
US
- Regular price
- $38.94
- Sale price
- $38.94
- Regular price
-
$43.95
In stock
Confirm this kit fits your RCMatch the RC model and OEM/model number shown above to your vehicle.
Confirm This Fits Your RC
Match the RC model and OEM/model number below before ordering.
- RC model
- Losi 810 1/8 Nitro 4WD Buggy (LOSB0021)
- OEM / model number
- LOSB0021
- Kit type
- Metric Conversion Stainless Steel Screw Kit
- Scale
- 1:8
- Power
- Nitro & Glow Fuel
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 →More compatibility details
- RC brand
- Losi
- Vehicle class
- Land
- Kit SKU
- los055m
- Model series
- 810, 810 Buggy
Product information
Everything You Need Before Ordering
Review what is included, installation notes, shipping details, and complete kit information.
Kit Contents & Installation
What’s IncludedReview the product-specific metric hardware and confirmed kit contents.
- Socket Screws (with extras)
- Button Screws (with extras)
- Flat Head Screws (with extras)
- Set Screws (with extras)
- Nuts (with extras)
- Washers (with extras)
- Bondhus Short Arm Hex Wrenches (all sizes for your kit)
- Plastic Pit Case (durable, reusable, and designed to organize and store the included metric hardware)
Hardware Coverage NotesCheck the product-specific metric conversion coverage before ordering.
- Confirm any barrel, shoulder, or collared screw requirements against the listed kit contents.
- Confirm any screw-pin or threaded-pin requirements against the listed kit contents.
- Check separately whether required E-clips or body clips are listed.
- Check separately whether required turnbuckles or hinge pins are listed.
- Verify the stated metric conversion coverage, fastener dimensions, and thread engagement before installation.
Installation & Model NotesImportant instructions and model-specific guidance.
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
Kit Details Material, model-specific metric conversion coverage, corrosion protection, and intended use.
- Material
- Conversion Coverage
- Model-specific metric replacements for the original screw locations covered by this kit
- Corrosion Protection
- Designed Use
- Metric conversion, maintenance, repairs & rebuilds
Shipping & Returns Handling time, current delivery estimate, and return policy.
Free shipping on qualifying orders of $29 or more to the contiguous 48 states and Washington, DC; USPS Priority Mail to Alaska and Hawaii costs $5 total per order.
Standard handling: 1–2 business days, Monday–Friday.
See Shipping Policy for current destination eligibility.
Carrier delivery time is additional; estimates are not guaranteed.
Easy 30-day returns with prepaid USPS label; refunds issued within 3 business days after the return is received.
Over 99% positive over ~14,000 orders on eBay (last 12 months) — as of October 2025. View on eBay
Full Product Description Read the complete product specifications and details.
Exact RC Model Fitment
Compatible RC Model:
Losi 810 1/8 Nitro 4WD Buggy (LOSB0021)
Compatible RC Brand:
Losi
RC Vehicle OEM / Model Number(s):
LOSB0021
RCScrewZ Kit Part Number:
los055m
Vehicle Compatibility Details
- RC Vehicle OEM / Model Number(s)
- LOSB0021
- RC Chassis Compatibility
- Losi 810 4WD Nitro Buggy Chassis (LOSB0021)
- Compatible Vehicle Type
- 1/8 Nitro 4WD Off-Road Buggy
- Terrain Compatibility
- Off-Road: Track, Dirt & Bashing
- Compatible Scale
- 1:8
- Compatible Fuel Type
- Nitro & Glow Fuel
What Is Included
This model-specific stainless screw kit includes hardware for the verified RC chassis. Exact sizes, quantities, and screw styles vary by model.
- Socket-head screws, with extras where applicable
- Button-head screws, with extras where applicable
- Flat-head or countersunk screws, with extras where applicable
- Set screws, with extras where applicable
- Matching nuts and washers, with extras where applicable
- Bondhus short-arm hex wrenches for applicable kit sizes
- Reusable plastic pit case for organized storage
Important:
The exact hardware mix is determined by the verified chassis configuration. Not every kit requires every screw style listed above.
What Is Not Included
This kit does not include items that require a different fitment, material, or hardware design:
- Barrel screws
- Shoulder or collared screws
- Screw pins or threaded pins
- E-clips or body clips
- Turnbuckles or hinge pins
- Wood, plastic, or coarse-thread screws
Installation & Model Notes
Metric Stainless Steel Screw Kit Compatibility:
Quick Fit Summary:
Compatible Brand: Losi
Fit: Model-specific fitment for Losi 810 RTR
Compatible RC Model/OEM Numbers: LOSB0021
Scale: 1/8
Power Source / Fuel Type: Nitro
Battery / Cell Count: Not applicable
Drive Type: 4WD
Vehicle Type: Off-Road Buggy
Chassis: Losi 810 4WD Nitro Buggy Chassis (LOSB0021)
Era: Contemporary Era (2010-2019)
OEM / Models: LOSB0021
RC Model Terrain: Off-Road: Track, Dirt & Bashing
This Kit Details:
SKU: los055m
MPN: los055m
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: LOSB0021.
Model Family Coverage: 810, 810 Buggy.
Product Benefits: Metric stainless conversion hardware for corrosion resistance, rebuilds, and long-term service.
Fitment Note: Confirm your vehicle is the Losi 810 RTR with OEM/model code LOSB0021 before ordering.
Reference Date: Official compliance date Aug 23, 2010.
Search-Friendly Notes: Losi parts, Losi screw kit, Losi bearing kit, losi 810 buggy, RC rebuild, upgrade, and maintenance.
Stainless Screw Kit Details
- RCScrewZ Kit Part Number
- los055m
- Product Brand
- RCScrewZ
- Screw Type
- Metric Stainless Steel Screws
- Screw Material
- A2-70/A4-80 Stainless Steel
- Approximate Piece Count
- Piece count coming soon. Contact us for immediate details.
- Color
- Silver
- Country/Region of Manufacture
- United States
Before Ordering
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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Customer Reviews
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Fits: Losi 810 1/8 Nitro 4WD Buggy (LOSB0021)
$38.94