5/16"-18 X 3-1/2" Machine Screws | Flat Head | Slotted Drive | Steel Zinc Plated (50/Pkg.)
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5/16"-18 X 3-1/2" Machine Screws | Flat Head | Slotted Drive | Steel Zinc Plated (50/Pkg.)

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5/16"-18 X 3-1/2" Machine Screws | Flat Head | Slotted Drive | Steel Zinc Plated (50/Pkg.)

Mutual ScrewSKU: 3156MSF
Price:
$29.11per 50( $0.58 each)
Pieces 50
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3-1/2
Material Steel
Grade Steel
Finish Zinc Plated
Drive Slotted
Head style Flat
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

Machine Screws Slotted Flat Steel Zinc 5/16-18 X 3-1/2 are durable, zinc-plated machine screws made from flat steel designed for secure metal-to-metal fastenings. Featuring a slotted drive and a 5/16-18 UNC thread, these screws measure 3-1/2 inches in length for versatile use in a wide range of hardware and mechanical applications.

  • Thread size: 5/16-18 UNC
  • Length: 3-1/2 inches
  • Drive type: Slotted
  • Material: Steel (flat steel)
  • Finish: Zinc plating

Applications

Ideal for securing metal panels, enclosures, and equipment where a reliable, corrosion-resistant fastener is required. These machine screws are well-suited for automotive, electrical, and machinery assemblies, as well as general hardware projects that demand a durable, corrosion-resistant fastener with a standard UNC thread.

Why choose zinc-plated steel machine screws?

The zinc finish provides corrosion resistance for indoor and light outdoor environments, while the slotted drive offers straightforward installation with common tools. The 5/16-18 UNC thread ensures compatibility with standard nuts and tapped holes, delivering dependable performance across a variety of applications.

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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