





RD003 Electric Guitar L Allen Wrench Guitar Adjustment Two-Course Type Steel Truss Rod length 440mm or 580mm two optional
SKU:Truss Rods-RD003-440
PRODUCT DESCRIPTION
Repair, replace, or build compatible electric guitar necks with the Guyker RD003 two-course steel truss rod. This truss rod is designed for electric guitar neck adjustment projects that require a matching steel truss rod length and installation structure.
Key Features
- Two-course steel truss rod: Designed for compatible electric guitar neck adjustment, repair, or custom build projects.
- Steel construction: Built from steel for neck reinforcement and adjustment applications.
- L Allen wrench adjustment style: Page title identifies this as an L Allen wrench guitar adjustment truss rod.
- Two length options: Available in 440 mm and 580 mm options for different neck construction requirements.
- Weight reference: 440 mm option is listed as 130 g per pc, and 580 mm option is listed as 310 g per pc.
- Fitment reminder: Please confirm neck channel length, adjustment access location, truss rod type, rod length, routing depth, installation direction, and neck construction before ordering.
Technical Specifications
| SKU / Model | RD003 |
| Product Type | Two-Course Type Steel Truss Rod |
| Suitable For | Electric Guitar Neck Adjustment / Repair / Build Projects |
| Material | Steel |
| Adjustment Style | L Allen Wrench Guitar Adjustment |
| Size Options | 440 mm, 580 mm |
| Weight per pc for 440 mm | 130 g |
| Weight per pc for 580 mm | 310 g |
| Package Includes | Selected Truss Rod |
Compatibility Notes
Important: Please check your neck construction before ordering. Neck channel length, adjustment access location, truss rod type, rod length, routing depth, installation direction, and neck construction may vary by guitar model, production year, or custom build requirements.
Package Includes
- Package contents vary by selected size:
- 440 mm option: 1 x 440 mm Steel Truss Rod
- 580 mm option: 1 x 580 mm Steel Truss Rod
Installation Note
Before installation: Confirm that the selected 440 mm or 580 mm truss rod length matches your neck channel and adjustment access design. Rod diameter, wrench size, thread size, anchor dimensions, and routing dimensions are not confirmed on the current page and should be verified before installation.
Size Reference

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FAQS
Do you class a reverse headstock guitar as a left hand guitar?
How do I determine the right size/fit for a specific accessory?
Can you provide more details about the materials used in your products?
At Guyker, we prioritize the use of high-quality materials to ensure the durability and performance of our products. While the specific materials used may vary depending on the accessory, we commonly utilize materials such as:
■ Metals: We often use materials like stainless steel, aluminum, and brass for hardware, bridges, and other metal components.
■ Plastics: Certain accessories may incorporate durable and impact-resistant plastics such as ABS or polycarbonate for knobs, pickguards, and other components.
■ Woods: Some accessories, like guitar knobs or picks, may be made from various types of wood, including rosewood, ebony, or maple.
For more detailed information about the materials used in a specific product, we recommend reviewing the product descriptions or reaching out to our customer support team at [support@guyker.com] for further clarification.
Do you offer international shipping?
Yes, we offer international shipping to customers worldwide. When placing your order, please ensure that you provide accurate international shipping information, including your complete address and contact details.
Please note that international shipping may be subject to customs duties, taxes, and additional fees imposed by the destination country. These charges are the responsibility of the recipient and may vary depending on the country's customs policies.
What is your process for returning or exchanging a product?
To initiate a return or exchange, please follow these steps:
■ Contact our customer support team at [support@guyker.com] or visit our website's Returns/Exchanges page.
■ Provide your order details and the reason for the return or exchange.
■ Our customer support team will guide you through the process and provide you with a return/exchange authorization if applicable.
■ Follow the instructions provided, including packaging the product securely and attaching the necessary labels or documentation.
■ Ship the product back to us using a traceable and insured shipping method.
■ Once we receive the returned product and verify its condition, we will process the return or exchange accordingly.
Can I return or exchange a product if it's been used?
In most cases, products that have been used or show signs of wear may not be eligible for return or exchange unless there is a defect or error on our part. We recommend reviewing our specific return/exchange policy or contacting our customer support team at [support@guyker.com] to determine the eligibility of your particular product.
Do I need to cover the return shipping costs?
The responsibility for return shipping costs may vary depending on the reason for the return or exchange. In some cases, such as if the product is defective or if we made an error, we will provide a prepaid shipping label or reimburse your return shipping costs. However, if the return or exchange is due to a change of mind or a non-defective product, you may be responsible for the return shipping costs. We recommend reviewing our return/exchange policy or contacting our customer support team at [support@guyker.com] for specific details regarding return shipping costs.

RD003 Electric Guitar L Allen Wrench Guitar Adjustment Two-Course Type Steel Truss Rod length 440mm or 580mm two optional
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