[100 PKG] Machine Screws Combo Round Steel Zinc 5/16-18 X 3

Mutual ScrewSKU: 3148MCR

Price:
Sale price$17.67per 100( $0.18 each)
Pieces 100
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3
Material Steel
Grade Steel
Finish Zinc Plated
Drive Combo
Head style Round
Threads per inch 18
Thread style Fully Threaded
Weight 4.0 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

Introducing the Machine Screws Combo Round Steel Zinc 5/16-18 x 3 — a reliable fastening solution designed for metal enclosures, machinery, and everyday hardware projects. This combo pack features round-head machine screws crafted from steel with a durable zinc plating for corrosion resistance and long-lasting performance.

Whether you're assembling panels, electronics enclosures, or structural components, these screws provide precise 5/16-18 threading with a 3-inch length to suit a variety of applications.

Key details

  • Material: Steel
  • Finish: Zinc-plated for corrosion resistance
  • Head style: Round
  • Thread size: 5/16-18
  • Length: 3 inches
  • Pack type: Combo (multiple screws included)

Why choose these machine screws

Durable construction and a smooth finish help prevent galling and seizing, while the standardized threading ensures compatibility with common nuts and tapped holes. The zinc coating adds protection against moisture and humidity, making them suitable for many indoor and light outdoor settings.

For best results, pair with the corresponding nuts or tapped holes that match the 5/16-18 thread. Always verify the length and head style to ensure a secure fit for your project.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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