5/16"-18 X 1-3/4" Machine Screws | Truss Head | Slotted Drive | Steel Zinc Plated (1000/Pkg.)

Mutual ScrewSKU: 3128MSTKC

Price:
Sale price$190.65per 1000( $0.19 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 Slotted
Head style Truss
Threads per inch 18
Thread style Fully Threaded
Weight 41.0 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 Truss Zinc Plated 5/16-18 x 1-3/4 deliver reliable metal-to-metal fastening for a wide range of projects. Featuring a slotted drive, a truss head for a low-profile finish, and a zinc-plated finish for corrosion resistance, these screws are ideal for equipment, cabinetry, electrical enclosures, and general metal fabrication.

  • Size: 5/16-18 (UNC)
  • Length: 1-3/4 inches
  • Head style: Truss head for a wide bearing surface and low profile
  • Drive type: Slotted
  • Finish: Zinc-plated for corrosion resistance
  • Material: Steel

These machine screws are designed for use with corresponding nuts or tapped holes that accept 5/16-18 threads. The zinc plating provides durability in indoor environments and light-duty outdoor use when protected from direct exposure. The slotted drive ensures compatibility with standard screwdrivers and is ideal for straightforward, reversible installation.

Applications

  • Equipment installation
  • Electrical enclosures and control panels
  • Metal cabinetry and housings
  • HVAC and appliances

For best results, pair with compatible nuts or threaded holes and ensure proper alignment for a secure fit. If you need a different finish, length, or drive style, we offer a full range of machine screws to fit your project needs.

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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