[1000 BULK] Machine Screws Unslotted Indented Hex Zinc Plated 5/16-18 X 1 1/4

Mutual ScrewSKU: 3120MHKC

Price:
Sale price$331.65per 1000( $0.33 each)
Pieces 1000
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 1-1/4
Material Steel
Grade Steel
Finish Zinc Plated
Drive Unslotted
Head style Indented Hex
Threads per inch 18
Thread style Fully Threaded
Weight 31.0 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 dependable fastening in metal-to-metal assemblies, these machine screws are unslotted with an indented hex drive and zinc plating for durability. The 5/16-18 size with a length of 1-1/4 inches makes them a versatile choice for a wide range of applications, from electronics enclosures to machinery fittings.

Key features:

  • Thread size: 5/16 in diameter, 18 threads per inch (5/16-18)
  • Length: 1-1/4 in
  • Head / drive: Indented hex head with internal hex (Allen) drive; unslotted
  • Material & finish: Zinc-plated steel for corrosion resistance
  • Type: Machine screw

Applications

  • Ideal for mounting plates, brackets, electronics housings, and equipment where a secure, flush drive is required.
  • Suitable for quick assembly with standard hex/Allen wrenches.

Why choose these zinc-plated unslotted indented hex machine screws? They deliver reliable grip in tight spaces, consistent sizing for compatibility with standard 5/16-18 threaded holes, and enduring corrosion resistance for everyday use in workshop and industrial environments.

Can We Help?

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

You may also like

Recently viewed