[600 BULK] Hex Head Cap Screws Grade 8 Steel Plain 5/16-18 x 2-1/2

Mutual ScrewSKU: 3140CH8PBB

Price:
Sale price$128.48per 600( $0.21 each)
Pieces 600
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 2-1/2
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 37.0 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 5/16-18 x 2-1/2 are high-strength fasteners designed to withstand demanding applications in machinery, automotive, and structural assemblies. Crafted from Grade 8 steel and finished plain, these screws deliver exceptional load-bearing capacity with dependable performance.

Featuring a hexagonal head for easy driving and a precision 5/16-18 thread, these screws ensure a secure, vibration-resistant grip in your projects. The plain finish provides a clean, uncoated surface suitable for indoor use or environments where plating is not required.

Key specifications

  • Size / Thread: 5/16-18 UNC
  • Length: 2-1/2 inches
  • Material: Grade 8 steel
  • Finish: Plain (uncoated)
  • Head style: Hex head
  • Drive type: Hex drive

Ideal for high-torque assemblies, automotive suspensions, equipment maintenance, and heavy machinery installations where a strong, reliable fastener is essential. These screws are designed to pair with corresponding nuts or tapped holes to create strong joints.

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