Mutual Screw & Supply

M18-2.5 X 40mm Hex Head Cap Screws | 316 Stainless Steel | Fully Threaded (25 / Pkg.)

M18-2.5 X 40mm Hex Head Cap Screws | 316 Stainless Steel | Fully Threaded (25 / - Main image
$77.45 $106.09 In stock

M18-2.5 x 40mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • 316 Stainless Steel construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 25

Specifications

  • Thread Size: M18-2.5
  • Length: 40mm
  • Thread Pitch: 2.5mm
  • Material: 316 Stainless Steel
  • Grade: 316
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 25
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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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Delivery costs

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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 (5.0 / 5 · 5 reviews)

Ruby O. ★★★★★

Replaced the cheap bolts on my boat trailer with these, and the 316 stainless is already proving itself against the constant salt spray. The hex head gives a solid grip with a socket, making installation quick. They’re pricier, but the corrosion resistance is worth every cent for marine use.

Richard ★★★★★

Used a few of these on a saltwater dock repair and the 316 stainless shows no signs of corrosion after a month. The hex heads held up fine under a socket wrench without stripping.

Emma Y. ★★★★★

The threads are clean and consistent across all 25 screws, which made installing them into my equipment frame a smooth process. The hex heads hold a socket perfectly without slipping.