Mutual Screw & Supply

#4-40 X 1-3/8" Machine Screws | Flat Head Phillips Drive | 18/8 Stainless Steel (800 / Pkg.)

#4-40 X 1-3/8" Machine Screws | Flat Head Phillips Drive | 18/8 Stainless Steel - Main image
$24.28 $35.7 In stock

18/8 (304) stainless steel machine screw offering strong corrosion resistance for indoor, outdoor, and washdown environments. Non-magnetic.

Specs

  • Dimensions: #4-40 1-3/8"
  • Drive type: Phillips
  • Head style: Flat Head
  • Material: 18/8 Stainless Steel
  • Thread: #4-40 UNC (coarse)

Features

  • Machine-thread screws for use with nuts or tapped holes
  • Flat head profile
  • Phillips drive
  • 18/8 Stainless Steel construction
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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 (4.8 / 5 · 5 reviews)

Sebastian F. ★★★★★

These are shorter than I was expecting but the flat heads sit perfectly flush in my aluminum brackets. The 800-count bag should last me through many more projects.

Lucy D. ★★★★★

The 18/8 stainless steel feels like real quality when you’re sorting through the bag, and every single screw’s threads were clean and sharp. I’ve been using them for an outdoor repair and the non-magnetic property is a nice bonus. These should last years without a speck of rust.

Jason ★★★★★

Was pleasantly surprised these 1-3/8" #4-40 screws are long enough for my project, and the flat head sits flush perfectly. The 18/8 stainless steel feels solid and corrosion resistant for outdoor use.