Frequently Asked Questions About Kenworth T300-T450 Dash Nuts & Screws

What size nuts and screws do I need for my Kenworth T300-T450 dashboard?

Most Kenworth T300-T450 dashboards use a combination of 1/4"-20 and 5/16"-18 thread screws with corresponding nuts. The most common lengths are 3/4", 1", and 1-1/4" screws. However, specific requirements can vary by model year and dash configuration. We recommend checking your existing hardware or consulting your truck's service manual for exact specifications. Our kits include the most commonly used sizes for standard dashboard installations.

Are these hardware pieces compatible with all T300-T450 model years?

Our dash nuts and screws are compatible with Kenworth T300, T400, and T450 models from 1994 through 2007. These model years share similar dashboard mounting systems. For trucks outside this range or with aftermarket modifications, you may need to verify fitment by measuring your existing hardware. The thread pitch and diameter remain consistent across these years, but screw lengths may vary depending on dashboard thickness and mounting bracket design.

What material and finish options are available for dashboard hardware?

We offer stainless steel and zinc-plated steel options. Stainless steel hardware provides superior corrosion resistance and maintains its appearance longer, making it ideal for show trucks or high-humidity environments. Zinc-plated steel offers good durability at a lower cost and is suitable for most applications. Both options come in either silver or black oxide finishes to match your interior aesthetic.

How many pieces of hardware do I need for a complete dashboard installation?

A complete dashboard installation typically requires 18-24 screws with matching nuts and washers, depending on your specific model and configuration. The T300 generally uses 18-20 pieces, while the larger T400 and T450 models may require up to 24. This includes hardware for the main dash panel, gauge cluster, and side panels. We recommend purchasing a complete hardware kit or ordering 10-15% extra pieces to account for any lost or damaged hardware during installation.

Can I use regular hardware store nuts and bolts instead of truck-specific hardware?

While standard hardware store fasteners may have the correct thread pitch, truck-specific hardware is engineered to meet DOT requirements and withstand constant vibration. Our dashboard hardware features prevailing torque lock nuts that resist loosening, proper grade ratings for strength, and correct shoulder lengths for panel fitment. Using non-specification hardware can lead to rattling dashboards, stripped threads, or safety issues during DOT inspections.