🔴 Complete RCScrewZ Stainless Steel Screw Kit 🔴 Rust-proof, model-specific upgrade with all screws plus extras. 🚀 Trusted by RC enthusiasts for decades—durable, polished performance you can count on.

RCScrewZ Stainless Screw Kit hpi003 for HPI Savage 21 1/8 Nitro 4WD Truck | KIT

J-M SUPPLIES RC Parts Store

Exact RC Model Fitment

Compatible RC Model:
HPI Racing Savage 21 1/8 Nitro 4WD Monster Truck (831, 12840)

Compatible RC Brand:
HPI Racing

RC Vehicle OEM / Model Number(s):
12840, 831

RCScrewZ Kit Part Number:
hpi003

Vehicle Compatibility Details

RC Vehicle OEM / Model Number(s) 12840, 831
RC Chassis Compatibility Savage 21 monster truck
Compatible Vehicle Type Monster Truck
Terrain Compatibility Off-Road
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

Compatibility Title: HPI Racing Savage 21 RTR / Kit 1/8 Nitro Monster Truck Compatibility

Quick Fit Summary:

  • Compatible Brand: HPI Racing

  • Fit: Model-specific for the listed RC model/platform: Savage 21 RTR / Kit

  • Compatible RC Model/OEM Numbers: 831, 12840

  • Scale: 1/8

  • Power Source / Fuel Type: Nitro

  • Battery / Cell Count: Not currently verified.

  • Drive Type: 4WD

  • Vehicle Type: Monster Truck

  • Chassis: Savage 21 monster truck

  • Era: Not currently verified.

  • OEM / Models: 831, 12840

  • RC Model Terrain: Off-Road

This Kit Details:

  • SKU: hpi003

  • MPN: hpi003

  • Kit Type: Stainless Steel Screw Kit

  • Screw Kit Piece Count: 150+ Pieces

  • Product Material: A2-70/A4-80 stainless steel hardware

  • Product Color: Silver

Release / Catalog Date: Not currently verified.

Product Benefits: This HPI stainless screw kit replaces worn factory hardware with A2-70/A4-80 stainless steel hardware for corrosion resistance, durability, RC repair, RC rebuild work, and a cleaner silver fastener finish. It is model-specific for the listed RC model/platform and supports HPI screws and stainless hardware maintenance for Savage 21 RTR / Kit.

Fitment Note: Start threads carefully by hand, use properly fitting hex tools, and do not overtighten screws into plastic or composite parts. Specialty hardware, shoulder screws, pins, wheel nuts, and non-screw items may need to be réuséd when not included in the model-specific screw kit.

OEM Alias Coverage: 831, 12840

Terrain Compatibility: Off-Road

Stainless Screw Kit Details

RCScrewZ Kit Part Number hpi003
Product Brand RCScrewZ
Screw Type Metric Stainless Steel Screws
Screw Material A2-70/A4-80 Stainless Steel
Approximate Piece Count 150+ Pieces
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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