5/16"-18 X 3" Machine Screws | Flat Head | Slotted Drive | Steel Zinc Plated (100/Pkg.)

Mutual ScrewSKU: 3148MSF

Price:
Sale price$21.90per 100( $0.22 each)
Pieces 100
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3
Material Steel
Grade Steel
Finish Zinc Plated
Drive Slotted
Head style Flat
Threads per inch 18
Thread style Fully Threaded
Weight 6.0 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 are durable fasteners designed for reliable, high-strength fastening in metal-to-metal assemblies. Featuring a slotted drive and a zinc-plated finish, these screws provide easy installation and superior corrosion resistance for a variety of applications.

  • Size: 5/16-18 x 3 inches
  • Material: Steel
  • Finish: Zinc-plated
  • Drive: Slotted
  • Thread: 5/16-18 (coarse thread), suitable for standard tapped holes and through-holes

Applications include mounting panels, fixtures, machinery, automotive components, equipment enclosures, and other assemblies where a precise, secure, slotted machine screw is required. The zinc finish offers corrosion resistance to extend service life in both indoor and sheltered outdoor environments, while the robust steel core delivers dependable strength for everyday fastening tasks.

Whether you’re outfitting a workshop project or completing a professional installation, these screws provide reliable performance, compatibility with standard nuts and tapped holes, and a corrosion-resistant finish that stands up to regular use.

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800-222-0324

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