5/16"-18 X 3/4" Machine Screws | Indented Hex Washer Head | Steel Black Oxide (1250/Pkg.)

Mutual ScrewSKU: 3112MWBKC

Price:
Sale price$357.06per 1250( $0.29 each)
Pieces 1250
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3/4
Material Steel
Grade Steel
Finish Black Oxide
Drive Unslotted
Head style Indented Hex Washer
Threads per inch 18
Thread style Fully Threaded
Weight 35.0 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

Secure every project with the Machine Screws Unslotted Indented Hex Washer Steel Black Oxide 5/16-18 x 3/4. Built for dependable performance in metal-to-metal fastenings, these screws combine a low-profile indented hex washer head with a durable steel body and a corrosion-resistant black oxide finish.

Key Features

  • Size and thread: 5/16-18 UNC, standard coarse thread for broad compatibility.
  • Length: 3/4 inch overall length, suited for through-holes and snug mounting.
  • Head and drive: Indented hex washer head (unslotted) designed for a secure, flush installation with a hex driver.
  • Material and finish: Steel core with black oxide finish for durability and a sleek look that resists minor corrosion.
  • Application: Ideal for machinery, electronics enclosures, and general hardware where a clean, low-profile fastener is needed.

Specifications

  • Thread type: UNC 5/16-18
  • Diameter: 5/16 inch
  • Length: 3/4 inch
  • Head type: Indented hex washer
  • Drive style: Indented hex (unslotted) for hex-key installation

Choose these machine screws for secure, professional fastenings with a clean, industrial look. Add to cart to complete your hardware kit today.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

Recently viewed