5/16"-18 X 1-3/4" Machine Screws | 82 Degree Flat Undercut Head | Phillips Drive | Steel Zinc Plated (1000/Pkg.)

Mutual ScrewSKU: 3128MPUKC

Price:
Sale price$227.62per 1000( $0.23 each)
Pieces 1000
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 1-3/4
Material Steel
Grade Steel
Finish Zinc Plated
Drive Phillips
Head style 82 Degree Flat Undercut
Threads per inch 18
Thread style Fully Threaded
Weight 33.0 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

Meet the [1000 BULK] Machine Screws Phil 82 Degree Flat Undercut Steel Zinc Plated 5/16-18 X 1 3/4 — a bulk supply designed for strong, lasting fixtures across metal and wood applications.

These screws are engineered for reliability, featuring a Phillips drive (PHIL), a flat undercut head with an 82-degree seating angle for a flush, professional finish, and a corrosion-resistant zinc-plated steel construction. The 5/16-18 thread size paired with a 1-3/4 inch length makes them versatile for a wide range of fastening tasks.

Key specifications

  • Quantity: 1000 screws per bulk pack
  • Size: 5/16-18
  • Length: 1-3/4 in
  • Head style: Flat undercut, 82-degree seating
  • Drive type: Phillips (PHIL)
  • Material & finish: Steel with zinc plating
  • Applications: Suitable for machine screw fastening into tapped holes or with nuts in metal or wood assemblies

Ideal for bulk purchases in workshops, manufacturing, maintenance, and hardware supply, these machine screws deliver consistent performance, easy installation with a standard Philips screwdriver, and a durable finish that resists corrosion in common environments. Keep a stock of these 1000-pack screws on hand for seamless, ready-to-use fastening in your next project.

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800-222-0324

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