Dorman Autograde Grade 5 Hex Head Cap Screw 5/16-18 x 2-1/2 Inch 50 Pack 170-125

Grade 5 hex head cap screws 5/16-18 x 2-1/2 inch used to replace missing or damaged fasteners in automotive and general repair 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, backed by a team of professional engineers and quality control specialists in the United States.

Key Features

• Hex head design allows for easy installation with standard wrenches or sockets
• Grade 5 classification provides medium tensile strength for general automotive use
• Thread size 5/16-18 with a length of 2-1/2 inches
• Corrosion-tested to withstand environmental exposure
• Bulk pack contains 50 pieces for multiple repairs or inventory stocking
• Engineered as a direct-fit replacement for original equipment fasteners

Benefits

• Restores structural integrity to components secured by these specific fasteners
• Reduces the risk of repeat repairs caused by inferior or worn-out bolts
• Ensures proper clamping force with standardized Grade 5 strength ratings
• Save time and money with a ready supply of commonly needed hardware
• Provides peace of mind with trustworthy quality validated through testing
• Matches OE form and function for a smoother installation process

Application

Ideal for mechanics, DIY enthusiasts, and fleet managers needing reliable replacement hardware for engines, suspensions, brackets, and body panels. Commonly used when original bolts are stripped, rusted, or lost during disassembly.

Fitment Notes

• Universal automotive hardware item not restricted to a specific year, make, or model
• Verify thread pitch and length requirements against your vehicle's service manual before installation
• Compatible with various applications requiring a 5/16-18 Grade 5 fastener

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

• 50 Piece bulk pack of Grade 5 Hex Head Cap Screws

Item Dimensions

• Package measures 4.9 inches by 3.7 inches by 2.2 inches
• Total package weight is approximately 3.1 lbs