[1500 BULK] Machine Screws Unslotted Indented Hex Washer Zinc Plated 5/16-18 X 1/2

Mutual ScrewSKU: 3108MWKC

Price:
Sale price$468.60per 1500( $0.31 each)
Pieces 1500
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 1/2
Material Steel
Grade Steel
Finish Zinc Plated
Drive Unslotted
Head style Indented Hex Washer
Threads per inch 18
Thread style Fully Threaded
Weight 36.0 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

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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800-222-0324

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