Shop Mack CH, CHN & CHU Truck Frame Nut Covers

Outfit your Mack CH/CHN/CHU with frame nut covers that blend style and function. Go for chrome for a classic shine or stainless steel for reliable rust resistance. Lightweight plastic offers colorful choices. With options like hexagonal, bullet, or spike shapes, find the look that fits your truck. Choose smooth or textured finishes, and even custom designs, to keep your nuts secure and stylish.

Mack CH/CHN/CHU Truck Frame Nut Covers

Enhance your truck's style and functionality with a wide selection of Mack CH/CHN/CHU Truck Frame Nut Covers. These versatile covers come in a variety of sizes and designs to fit your specific model, including chrome spike, skull, and top hat styles. Protect your truck's nuts and bolts while adding a touch of custom chrome flair. Whether you're looking to upgrade your existing Mack with a sleek new look or accessorize a newer model, these nut covers are a simple yet impactful way to personalize your ride. With options ranging from 3/8 inch to 1.125 inch diameters, you can find the perfect fit to complement your Mack truck's hardware. Elevate your Mack's style and performance with these durable, easy-to-install Mack CH/CHN/CHU Truck Frame Nut Covers.

Frequently Asked Questions About Mack CH/CHN/CHU Truck Frame Nut Covers

Will these nut covers fit my specific Mack CH model year?

These frame nut covers are designed to fit Mack CH, CHN, and CHU models from 1988 through 2007. They're engineered to work with the standard frame rail bolt patterns used across these model years. However, if your truck has aftermarket modifications to the frame rails or non-standard bolt spacing, we recommend measuring your bolt pattern before ordering. The standard spacing for these models is typically 33mm or 1.5 inches for the frame rail nuts.

What material are these nut covers made from, and will they rust or corrode?

Most of our Mack CH/CHN/CHU frame nut covers are manufactured from either chrome-plated ABS plastic or stainless steel. The chrome-plated ABS options provide excellent corrosion resistance and maintain their shine without the weight of metal. Stainless steel versions offer maximum durability and are ideal for trucks operating in harsh winter conditions with road salt exposure. Both materials are designed to withstand extreme weather conditions and regular truck washing without deteriorating.

How difficult is the installation process, and what tools do I need?

Installation is straightforward and typically takes 30-45 minutes for a complete set. You'll need to remove the existing frame nuts using a socket wrench (usually 21mm or 13/16"), clean the threads if necessary, then install the decorative nut covers. Some styles are push-on designs that snap over existing nuts, while others thread on directly. No drilling or permanent modifications are required. We recommend using anti-seize compound on threaded versions to prevent galvanic corrosion and ensure easy future removal.

What styles and finishes are available for these nut covers?

Frame nut covers for Mack CH series trucks come in several popular styles including pointed spike, dome, flat top, and bullet designs. Finish options typically include chrome, polished stainless steel, and powder-coated black. The pointed spike style is the most popular for a classic aggressive look, while dome styles offer a more refined appearance. Most covers come in sets that include enough pieces to cover all visible frame rail nuts on both sides of the truck.

How many nut covers do I need for a complete installation?

A standard Mack CH/CHN/CHU truck typically requires between 40-60 frame nut covers for complete coverage, depending on wheelbase and frame configuration. Short wheelbase day cabs usually need around 40 pieces, while extended frame trucks with sleepers may require up to 60. Count the visible frame nuts on both sides of your truck before ordering. Most sets are sold in quantities of 20, so you'll likely need 2-3 sets for full coverage. Don't forget to check for any auxiliary equipment mounting bolts that might also benefit from covers.