Mutual Screw & Supply

1/4-20 X 1-3/8" Machine Screws | Flat Head Slotted Drive | 18/8 Stainless Steel (200 / Pkg.)

1/4-20 X 1-3/8" Machine Screws | Flat Head Slotted Drive | 18/8 Stainless Steel - Main image
$22.93 $36.98 In stock

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

Specs

  • Dimensions: 1/4-20 1-3/8"
  • Drive type: Slotted
  • Head style: Flat Head
  • Material: 18/8 Stainless Steel
  • Thread: 1/4-20 UNC (coarse)

Features

  • Machine-thread screws for use with nuts or tapped holes
  • Flat head profile
  • Slotted drive
  • 18/8 Stainless Steel construction
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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 (4.6 / 5 · 5 reviews)

Sofia ★★★★★

I needed slotted flat heads for a marine hatch rebuild, and these 1/4-20s threaded perfectly into the original holes with no binding. The 18/8 stainless should hold up well against the salt spray.

Zoe ★★★★★

Using these in a outdoor fire pit table I built, the 18/8 stainless is holding up perfectly against the rain and humidity without a speck of rust. The flat heads sit flush and the slotted drive felt more precise than I expected for the price per pack.

Carter ★★★★★

These screws were exactly what I needed for an outdoor gate repair, and the 18/8 stainless steel handles the weather perfectly so far. The flat head sits flush with the wood, and the slotted drive is easy to work with even when my hands are tired.