[400 BULK] Cap Screws Button Socket 18/8 Stainless Black Oxide 4/40 X 5/16
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[400 BULK] Cap Screws Button Socket 18/8 Stainless Black Oxide 4/40 X 5/16

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[400 BULK] Cap Screws Button Socket 18/8 Stainless Black Oxide 4/40 X 5/16

Mutual ScrewSKU: 0405CSB188BYW
Price:
$59.51per 400( $0.15 each)
Pieces 400
Measurement type Inch
Thread size #4-40
Length 5/16
Material Steel
Grade 18/8
Finish Black Oxide
Drive Socket
Head style Button
Threads per inch 40
Weight 1.0 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 18/8 Stainless Black Oxide 4/40 x 5/16 is a high-strength, corrosion-resistant fastener designed for precision assemblies.

Product features

  • Material: 18/8 stainless steel (304) for dependable durability
  • Finish: Black oxide for a non-reflective, professional appearance
  • Head style: Button socket cap screw offers a smooth, compact profile
  • Thread size: 4-40
  • Length: 5/16 inch

Benefits

The stainless construction provides excellent resistance to corrosion and wear, making these cap screws suitable for challenging environments. The black oxide finish minimizes glare and helps the fasteners blend into assemblies, while the button head design sits flush in tight spaces to reduce snagging and improve part clearance.

Applications

  • Electronics enclosures and precision instruments
  • Machinery assemblies and control panels
  • Cabinetry, appliances, and light-duty automotive components

Care and maintenance

Clean with mild soap and water and dry thoroughly to preserve the finish. Avoid harsh chemicals that could degrade the oxide coating 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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