RGP 1" Trailer Axle Spindle Castle Nut, 1"-14 Thread, Silver Zinc Plated

$8.99 USD

Shipping calculated at checkout.

Quantity

Pack of 4 Pack of 8 Pack of 10

Product variants

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received.

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

Q1 Will this brake fit my trailer?

This brake assembly fits most standard 7,000 lb trailer axles that use 12" × 2" electric brakes with a 5-bolt mounting flange. Please verify your axle rating and brake dimensions before ordering. If you're unsure, send us your axle tag or hub information and we'll help confirm compatibility.

Q2 Does it fit Dexter or Lippert axles?

Yes. It is compatible with many standard Dexter, Lippert, Rockwell American, AL-KO, and other 7,000 lb trailer axles that use a standard 12" × 2" brake assembly. Always verify your axle specifications before purchasing.

Q3 Is this a self-adjusting brake?

Yes. This is a self-adjusting electric brake assembly, which automatically maintains proper brake shoe clearance during normal operation. This reduces maintenance and helps provide consistent braking performance.

Replacement:

Designed as a direct replacement component for securing hub assemblies and bearings on standard trailer spindles:

Fitment Compatibility: Fits standard 1" trailer axles and EZ-Lube axle spindles

Specifications:

Nut Details:

Thread Size: 1" Diameter (1"-14 Thread)

Outer Diameter (O.D.): 1.4"

Thickness / Height: 0.56"

Finish / Color: Silver Zinc Plated (Corrosion-Resistant)

Material: Steel

What's Included by Kit Option:

Pack of 4:

4 x 1" Silver Trailer Axle Spindle Castle Nut

Pack of 8:

8 x 1" Silver Trailer Axle Spindle Castle Nut

Pack of 10:

10 x 1" Silver Trailer Axle Spindle Castle Nut

Product Overview:

Secure your trailer's wheel hub setup with this high-strength 1-inch trailer axle spindle castle nut. Precision-machined to fit standard 1-inch threaded trailer spindles and EZ-Lube axles, this heavy-duty steel nut maintains critical bearing tension while providing slotted castellated grooves for quick cotter pin locking.

Finished with a durable silver zinc plating, it offers robust protection against rust, road grime, and harsh weather exposure to extend service life on the road. Whether you're completing routine hub maintenance or replacing missing spindle hardware, this individual castle nut delivers a precise, vibration-proof fit for utility trailers, boat trailers, and light cargo haulers.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.