Mutual Screw & Supply

#4-40 X 9/16" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel (1000 / Pkg.)

#4-40 X 9/16" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel (1000 - Main image
$11.39 $16.51 In stock

These #4-40 x 9/16" socket cap screws are manufactured from 18/8 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 18/8 Stainless Steel
  • Drive: Hex Socket
  • Thread size: #4-40
  • Length: 9/16"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Drive type: Hex Socket
  • Thread size: #4-40
  • Length: 9/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 200 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.2 / 5 · 5 reviews)

John M. ★★★★★

Had to replace some tiny screws on a jig fixture, and these #4-40s fit perfectly without any binding. The 18/8 stainless seems like it'll hold up well in my shop environment.

Thomas C. ★★★★★

Finally, a small fastener that isn't flimsy. The hex socket drive on these #4-40 screws gripped perfectly with my Allen key, making assembly a breeze.

Mia Q. ★★★★☆

The hex socket drive made these easy to install in tight spaces on my precision assembly. They feel solid and corrosion-resistant, though I wish they came with a small sample card for quick identification. Overall, a reliable batch of screws for the price.