Mutual Screw & Supply

#4-40 X 1-5/8" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel (600 / Pkg.)

#4-40 X 1-5/8" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel (600 - Main image
$26.28 $35.52 In stock

These #4-40 x 1-5/8" 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 Drive
  • Thread size: #4-40
  • Length: 1-5/8"
  • 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 Drive
  • Thread size: #4-40
  • Length: 1-5/8"
  • Threads per inch: 40
  • Measurement type: Inch
  • Pack quantity: 600 per package
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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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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Hannah B. ★★★★★

Bought these for a jig repair at work, and the 18/8 stainless steel gives me confidence they won't rust in a humid shop. The 600-count pack is great to have spares on hand for future precision assemblies.

Joseph ★★★★★

These screws fit perfectly into my jig fixtures, and the 18/8 stainless steel feels solid and corrosion-resistant right out of the box. I’ve already used about a hundred on a new assembly project.

Olivia ★★★★★

Finally, a supplier who actually delivers the right length in bulk — these #4-40 x 1-5/8" screws fit perfectly in my jig setup. The hex socket drive grips well with a standard Allen key, and the 18/8 stainless feels solid enough for repeated adjustments.