5/16-18 X 3" Socket Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)
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5/16-18 X 3" Socket Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

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5/16-18 X 3" Socket Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

Mutual ScrewSKU: 3148CSPKC
Price:
$117.19per 100( $1.17 each)
Pieces 100
Measurement type Inch
Thread size 5/16-18
Length 3
Material Alloy Steel
Finish Thermal Black Oxide
Drive Hex Socket
Head style Socket
Weight 7.0 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 robust fastening, these Socket Head Cap Screws are crafted from premium alloy steel and finished in thermal black oxide for enhanced durability and corrosion resistance. Sized at 5/16-18 with a 3" length, they deliver reliable performance in a wide range of machinery and equipment assemblies.

Key features

  • Material: Alloy Steel for high strength and durability
  • Finish: Thermal Black Oxide for corrosion resistance and low glare
  • Head type: Socket Head Cap Screw for recessed drive
  • Thread size: 5/16-18
  • Length: 3 inches
  • Drive type: Hex/Allen drive for precise torque and reduced cam-out

Applications

Designed for high-load fastening in equipment, automotive assemblies, and machinery where secure, flush mounting is essential. The high-strength alloy steel and black oxide finish help resist wear and maintain torque in demanding environments.

Why choose these

  • Durable alloy steel construction
  • Low-profile head with recessed drive
  • Consistent 5/16-18 thread engagement

Order these socket head cap screws in 5/16-18 x 3 to ensure your next project has reliable performance and a clean, professional finish.

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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