5/16-18 X 1-1/4" Button Head Cap Screws | Steel Black Oxide (1 / Pkg.)
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5/16-18 X 1-1/4" Button Head Cap Screws | Steel Black Oxide (1 / Pkg.)

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5/16-18 X 1-1/4" Button Head Cap Screws | Steel Black Oxide (1 / Pkg.)

Mutual ScrewSKU: 3120CSBKC
Price:
$59.80per 100( $0.60 each)
Pieces 100
Measurement type Inch
Thread size 5/16-18
Length 1-1/4
Material Steel
Finish Black Oxide
Drive Hex Socket
Head style Button
Weight 3.0 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

Cap Screws Button Socket Steel Black Oxide 5/16-18 X 1 1/4 are precision-engineered socket cap screws featuring a smooth, rounded button head designed for a clean, low-profile appearance in tight spaces.

Made from durable steel and finished in black oxide, these screws deliver reliable strength with enhanced corrosion resistance and a sleek, satin-black look that blends into most assemblies.

  • Head style: Button head socket cap screw for a compact profile
  • Material: Steel
  • Finish: Black oxide for corrosion resistance and reduced glare
  • Thread size: 5/16-18 UNC
  • Length: 1 1/4 inch
  • Drive type: Hex socket (Allen) drive

Whether you're assembling machinery, automotive components, or DIY projects, these socket cap screws offer dependable performance in a wide range of applications. The 5/16-18 thread provides robust engagement, while the 1 1/4 inch length ensures adequate bite in thicker materials.

Tips for installation: Clean threads, apply thread lubricant if required by your project, and tighten to the recommended torque to avoid over-tightening or thread damage.

Add these cap screws to your hardware toolkit for a durable, professional finish that matches most gray, black, or metallic assemblies.

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