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Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.
Representative image of an RCScrewZ stainless steel screw kit for Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030); exact kit contents vary by RC model.

RCScrewZ Stainless Steel Screw Kit los132 for Losi Hammer Rey U4 RTR Brushless 1/10 Electric 4WD Rock Racer Desert Buggy (LOS03030) | RCX

RCScrewZ

SKU: los132

Regular price
$53.67
Sale price
$53.67
Regular price
$59.95
Shipping, stock & payment info
Quick snapshot of availability, estimated delivery, and our shipping/returns.

Available Quantity: 95

Free shipping on all U.S. orders (USPS Priority Mail).
Ships within 1–2 business days (Mon–Fri); some Saturday shipments by 12:00 PM ET.
Most orders ship from Canton, MI 48187. APO/FPO/DPO & PO Boxes welcome.
Priority Mail typically delivers in 2–3 business days (estimates; 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

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This page shows the Stainless Steel Screw Kit for this RC model — view all compatible Screw and Bearing kits for this RC model by clicking this link:

Losi Hammer Rey U4 4WD 1/10 RTR (LOS03030) Rock Racer Truck — Compatible Kits by RCScrewZ (Screws & Bearings)

Pro tip: Most builders grab a Stainless Screw Kit and a Bearing Kit for this RC model so everything wears evenly.

Quick Fit Summary
  • Compatible Brand: Losi
  • RC Model: Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
  • Scale: 1:10
  • Power Source / Fuel Type: Electric
  • Chassis: Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)
  • Era: Next Gen Era (2020–Present)
  • OEM / Models: LOS03030
Quick Fit Summary — Full Details

Quick Fit Summary

Key fit details for your RC model, plus what’s in this kit.

RC Model Fit & Specs

  • Compatible Brand: Team Losi
  • Fit: Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
  • Compatible RC Model Numbers: LOS03030
  • Scale: 1:10
  • Power Source / Fuel Type: Electric
  • Vehicle Type: 1/10 Electric 4WD Rock Racer Desert Buggy
  • Chassis: Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)
  • Era: Next Gen Era (2020–Present)
  • RC Model Terrain: Off-Road: Desert, Trail, Rock & Dirt

This Kit Details

  • SKU: los132
  • MPN: los132
  • Product: Model-Specific Screw Kit
  • Product Material: Polished Stainless Steel (A2-70/A4-80)
  • Product Color: Silver
  • Threads/Heads: Hex screws: Button Head, Socket Cap, Flat/Countersunk, Set Screws
  • Pieces: Piece count coming soon. Contact us for immediate details.
  • Coverage: Model-specific fasteners; replaces coarse screws
  • Use Case: Full RC Rebuild / Upgrade
  • 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 great for storage)
  • Tips: Seat fully · avoid cross-thread · Blue threadlocker on metal-to-metal · Re-check after first runs · retorque lightly · Rust-resistant stainless steel
  • Install: ≈60 min; recheck torque after first run
  • Country of Origin: United States
Full Product Description

Exact RC Model Fitment

Compatible RC Model:
Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)

Compatible RC Brand:
Losi

RC Vehicle OEM / Model Number(s):
LOS03030

RCScrewZ Kit Part Number:
los132

Vehicle Compatibility Details

RC Vehicle OEM / Model Number(s)
LOS03030
RC Chassis Compatibility
Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)
Compatible Vehicle Type
1/10 Electric 4WD Rock Racer Desert Buggy
Terrain Compatibility
Off-Road: Desert, Trail, Rock & Dirt
Compatible Scale
1:10
Compatible Fuel Type
Electric

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

Stainless Steel Screw Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Losi

  • Fit: Model-specific fitment for Losi Hammer Rey U4 RTR Brushless

  • Compatible RC Model/OEM Numbers: LOS03030

  • Scale: 1/10

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: 2S/3S compatible

  • Drive Type: 4WD

  • Vehicle Type: Rock Racer Desert Buggy

  • Chassis: Losi Hammer Rey 3S 4X4 RTR Brushless Desert Buggy (LOS03030)

  • Era: Next Gen Era (2020–Present)

  • OEM / Models: LOS03030

  • RC Model Terrain: Off-Road: Desert, Trail, Rock & Dirt

This Kit Details:

  • SKU: los132

  • MPN: los132

  • 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: LOS03030

  • Model Series / Search Aliases: Hammer Rey, Hammer Rey U4, Rey

Model Family Coverage:

Losi Hammer Rey, Hammer Rey U4, Rey fitment coverage is limited to the OEM/model numbers listed above. Do not assume fitment with nearby Losi/TLR variants unless they share the same verified kit listing.

Product Benefits:

A2-70/A4-80 stainless steel hardware helps improve corrosion resistance and supports durable long-term maintenance, rebuilds, race prep, restoration, and service work for this model-specific Losi/TLR platform.

Installation Tip: Use proper hex drivers, start threads carefully, and do not overtighten into plastic, composite, graphite, or aluminum parts.

Fitment Note: Match the OEM/model number and vehicle description before ordering. This kit is intended for the listed Losi/TLR model family only.

Search-Friendly Notes: Useful buyer search phrases include Losi parts, Team Losi parts, TLR parts, Losi screw kit, Losi bearing kit, TLR 8IGHT, 22X-4, Mini JRX2, Hammer Rey, RZR Rey, LMT, and Tenacity where they match the specific model above.

Stainless Screw Kit Details

RCScrewZ Kit Part Number
los132
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.

Fits: Losi Hammer Rey U4 1/10 Electric 4WD Buggy (LOS03030)
$53.67

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