[225 PKG] Hex Head Cap Screws Grade 8 Steel Plain 5/16-18 x 8

Mutual ScrewSKU: 31128CH8PBB

Price:
Sale price$304.18per 225( $1.35 each)
Pieces 225
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 8
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 5/16-18 x 8 are high-strength fasteners designed for demanding applications where reliable performance matters. Constructed from Grade 8 steel and finished in plain steel, these screws deliver exceptional strength without coatings that can complicate high-heat or high-friction environments.

Key features and benefits:

  • Material: Grade 8 steel for superior tensile strength and durability.
  • Finish: Plain steel (uncoated) provides consistent dimensions and mating with compatible assemblies.
  • Head type: Hex Head Cap Screw for easy driving with common wrenches or sockets.
  • Thread size: 5/16-18 (coarse thread) for strong engagement in a variety of substrates.
  • Length: 8 inches to suit longer fastener requirements.
  • Drive: Hex drive to resist stripping under high torque.

Applications: Ideal for automotive, machinery, and construction projects where high-strength fasteners are required. These Grade 8 steel screws are suited for assemblies that demand reliable performance and long-lasting service.

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