Dorman Autograde Grade 5 Hex Head Cap Screw 5/16-18 x 4-1/2 Inch 25 Pack 170-145

Grade 5 hex head cap screws sized 5/16-18 x 4-1/2 inch used to replace worn or missing fasteners in automotive and industrial applications.

Built to meet the manufacturer's design intent for reliable service, these bolts are manufactured using durable materials and corrosion-tested to ensure required strength and longevity.

Key Features

• Hex head design allows for easy installation with standard wrenches
• Grade 5 classification provides medium tensile strength for general use
• Thread specification is 5/16-18 with a length of 4-1/2 inches
• Corrosion-tested to withstand harsh environmental conditions
• Engineered by professional engineers and quality control specialists in the United States
• Package contains 25 pieces for multiple repair jobs

Benefits

• Restores structural integrity to components requiring specific bolt grades
• Reduces the risk of repeat repairs caused by fastener failure
• Ensures a secure fit that matches OE form and function
• Saves time with a bulk pack suitable for various maintenance tasks
• Provides confidence through rigorous durability testing
• Offers a trustworthy aftermarket solution for daily driving demands

Application

Ideal for mechanics and DIY enthusiasts needing reliable replacement fasteners for suspension, engine, or chassis repairs where Grade 5 strength is specified.

Fitment Notes

• Universal automotive part designed to fit various makes and models requiring 5/16-18 x 4-1/2 inch Grade 5 bolts
• Verify thread pitch and length requirements before installation

Why Choose Dorman?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance.

What's in the Box

• 25 Piece Pack of Grade 5 Hex Head Cap Screws

Item Dimensions

• 4.9 inches x 3.7 inches x 2.2 inches
• Weight: 2.6 lbs