3/4 X 5 1/2 UNF LOWER ARM BOLT

Hex Bolt 3/4" UNF x 5-1/2" Grade 8 Zinc Plated

Designed for high-load suspension and chassis applications, this 3/4" UNF Grade 8 hex bolt is commonly used in lower control arm and suspension mounting assemblies where strength, reliability and precise clamping force are critical. The fine-thread UNF design provides increased thread engagement and improved resistance to loosening under vibration, making it well suited to demanding motorsport environments.

Manufactured from high-tensile Grade 8 steel and finished with a zinc-plated coating for corrosion resistance, this bolt delivers the durability required for race cars, performance vehicles and heavy-duty fabrication projects. The partially threaded shank provides improved shear strength in load-bearing applications compared to fully threaded alternatives.

Ideal for TA2, Trans Am, circuit racing, speedway and performance chassis assemblies.

Specifications

• Thread Size: 3/4" UNF

• Length: 5-1/2"

• Head Type: Hex Head

• Grade: Grade 8

• Finish: Zinc Plated

• Fine Thread (UNF)

• Partially Threaded Shank

• High Tensile Fastener

• Suitable for Lower Control Arm Applications

• SKU: B80FZ205502