[50 PKG] Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5/8-18 x 8-1/2

Mutual ScrewSKU: 63136CH8PBB

Price:
Sale price$165.51per 50( $3.31 each)
Pieces 50
Measurement type Inch
Thread size 5/8-18
Diameter 5/8
Length 8-1/2
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 40.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Hex Head Cap Screws Grade 8 Steel - Plain Finish, Fine Thread 5/8-18 x 8-1/2

Designed for high-strength fastening tasks, these hex head cap screws are forged from Grade 8 steel for exceptional tensile strength and durability. The plain finish keeps the profile simple and compatible with a wide range of assemblies where coatings are not required.

The fine thread of 5/8-18 provides tighter engagement and improved resistance to loosening in precision or heavy-duty applications, delivering superior clamping in thick components. Each screw measures 8-1/2 inches in length with a 5/8 inch major diameter, making them suitable for through-hole assemblies when paired with the appropriate nuts and washers.

Key applications include automotive, industrial machinery, equipment maintenance, and other heavy-duty fastening tasks where reliable performance matters. The hex head allows easy wrenching with standard tools, enabling consistent torque and secure joints even in tight spaces.

  • Material: Grade 8 steel for high tensile strength
  • Finish: Plain, uncoated
  • Thread: Fine thread 5/8-18
  • Length: 8-1/2 inches
  • Diameter: 5/8 inch major diameter
  • Head type: Hex head for easy tightening with standard tools
  • Typical uses: Automotive, machinery, equipment assembly, and heavy-duty fastenings

Pair with compatible Grade 8 nuts and washers to ensure secure, repeatable performance on your next project. Add these dependable, high-strength screws to your toolbox today.

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