[225 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/8-18 x 1-1/4

Mutual ScrewSKU: 6320CH8PUSABB

Price:
Sale price$165.88 Regular price$184.31per 225( $0.74 each)
Pieces 225
Measurement type Inch
Thread size 5/8-18
Diameter 5/8
Length 1-1/4
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 39.0 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

Upgrade your rig with Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/8-18 x 1-1/4. These high-strength fasteners are crafted from premium Grade 8 steel and finished plain for maximum durability in demanding assemblies. Made in the USA, they deliver reliable performance in rugged environments where safety and structural integrity matter.

Key features

  • Material: Grade 8 steel
  • Finish: Plain (uncoated)
  • Head style: Hex head cap screw
  • Thread size: 5/8-18 UNC
  • Length: 1-1/4 inches
  • Country of origin: USA-made
  • Drive type: Hex drive for standard wrenches and sockets

Applications include heavy machinery, automotive assemblies, equipment mounting, and other high-stress joints where a strong, dependable fastener is essential. The plain finish keeps costs down and allows for in-service painting or plating if needed, while Grade 8 steel provides superior shear and tensile strength compared to lower grades.

To ensure the best performance, pair these hex head cap screws with matching nuts or tapped holes that meet 5/8-18 UNC specifications, and tighten using the appropriate torque for Grade 8 fasteners based on your materials and load requirements.

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800-222-0324

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