[100 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 9/16-18 x 5

Mutual ScrewSKU: 5780CH8PUSABB

Price:
Sale price$185.42 Regular price$206.03per 100( $1.85 each)
Pieces 100
Measurement type Inch
Thread size 9/16-18
Diameter 9/16
Length 5
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

Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 9/16-18 x 5 are high-strength fasteners designed for demanding assemblies. Crafted from Grade 8 steel and manufactured in the USA, these plain (uncoated) screws deliver reliable performance in machine shops, automotive, and industrial environments.

Overview

These hex head cap screws feature a durable Grade 8 steel body with a plain finish, making them ideal for indoor use where corrosion resistance is not a primary concern. The 9/16-18 size corresponds to a 9/16 inch diameter with 18 threads per inch, and they measure 5 inches in length, providing strong clamping power in a compact package.

Key Features

  • Grade 8 steel for exceptional strength and toughness
  • Plain, uncoated finish for clean assemblies and cost-efficiency
  • Hex head for secure torque transfer and easy insertion
  • Size: 9/16-18 UNC (9/16 in diameter, 18 TPI, 5 in length)
  • Made in the USA

Specifications

  • Material: Grade 8 steel
  • Finish: Plain (uncoated)
  • Head type: Hex
  • Thread size: 9/16-18 UNC
  • Length: 5 inches
  • Country of origin: USA

Ideal for machinery, automotive builds, equipment maintenance, and other high-stress assemblies where maximum strength and reliability are essential. If you need a plain finish without coatings and prefer American-made hardware, these screws are a dependable choice.

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