5/16"-18 X 1/2" Machine Screws | Pan Head | Phillips Drive | 18/8 Stainless Steel Black Oxide (1000/Pkg.)

Mutual ScrewSKU: 3108MPP188BKC

Price:
Sale price$325.92per 1000( $0.33 each)
Pieces 1000
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 1/2
Material 18/8 Stainless Steel
Grade 18/8
Finish Black Oxide
Drive Phillips
Head style Pan
Threads per inch 18
Thread style Fully Threaded
Weight 20.0 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

Engineered for strength and reliability, the Machine Screws Phil Pan 18/8 Stainless Black Oxide 5/16-18 X 1/2 delivers dependable performance in a wide range of assembly tasks. With a Phillips pan head, 18/8 stainless steel construction, and a durable black oxide finish, these screws are built to resist corrosion while providing a clean, professional look.

Key Features

  • Drive Type: Phillips drive for secure seating and easy installation.
  • Head Style: Pan head provides a broad bearing surface for load distribution.
  • Material: 18/8 stainless steel for excellent corrosion resistance.
  • Finish: Black oxide coating offers a subtle dark appearance and added wear resistance.
  • Size and Thread: 5/16-18 UNC thread for common, coarse-pitch fastening.
  • Length: 1/2 inch (12.7 mm) suitable for a variety of materials and applications.

Specifications

  • Material: 18/8 stainless steel
  • Finish: Black oxide
  • Head: Phillips pan
  • Thread: 5/16-18 UNC
  • Length: 1/2 in

Applications

Ideal for metal-to-metal and wood-to-metal assemblies where a durable, low-profile fastener is required. Perfect for cabinetry, electronics enclosures, automotive interiors, signage, and general hardware projects seeking a combination of corrosion resistance and a sleek finish.

Care and Installation Tips

  • Pair with the correct driver to prevent cam-out and ensure torqued seating.
  • Avoid over-tightening to protect threads and the surrounding material.
  • Store in a dry environment to preserve the black oxide finish over time.

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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