5/16"-18 X 1/2" Machine Screws | Indented Hex Washer Head | Steel Zinc Plated (1500/Pkg.)

★★★★☆ 4.0 148 reviews

US$113.00
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US$113.00
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Product details

Management number 242059496 Release Date 2026/07/19 List Price US$113.00 Model Number 242059496
Category

Engineered for secure fastening, these Machine Screws Unslotted Indented Hex Washer Zinc Plated 5/16-18 x 1/2 are designed to deliver dependable performance in metal-to-metal assemblies. The unslotted indented hex washer head provides a flush profile and reduces the risk of tool slippage during installation.

Product Highlights

  • Head style: Indented hex washer head, unslotted for a clean, tamper-resistant drive and a flush seating.
  • Finish: Zinc plated for corrosion resistance and long service life.
  • Material: Steel for strength and durability.
  • Size: 5/16-18 diameter, 1/2 inch length.
  • Thread: Coarse 18 threads per inch for rapid assembly and good holding power.

Specifications

  • Diameter and thread pitch: 5/16-18
  • Length: 1/2 inch
  • Finish: Zinc plated
  • Head type: Indented hex washer, unslotted
  • Material: Steel

Applications

Ideal for fastening thin panels, enclosures, and equipment housings where a built-in washer distributes load and prevents pull-through. Commonly used in electrical and metal fabrication projects, automotive assemblies, and general hardware applications requiring a reliable, corrosion-resistant machine screw.


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148 ratings | 61 reviews
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