Mutual Screw & Supply

M18-2.5 X 40mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully Threaded (25 / Pkg.)

M18-2.5 X 40mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully - Main image
$33.28 $55.47 In stock

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

  • Class 8.8 Steel Zinc Plated 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: Steel
  • Grade: Class 8.8
  • Finish: Zinc Plated CR+3
  • 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)

Brian F. ★★★★★

Finally got these to replace some tired bolts on a press jig, and the fully threaded shaft made alignment a non-issue. The zinc coating looks consistent across all 25, no flaking at the edges.

Carter ★★★★★

The hex heads sit perfectly on a socket wrench with zero rounding when I torqued them down on our assembly jig. The zinc plating has that clean, consistent finish that you can tell will hold up against corrosion. These are exactly what I expect from Class 8.8 fasteners.

Edward O. ★★★★★

The fully threaded length is a big plus for me—I could stack washers and a lock nut without worrying about runout. These torqued down smoothly with a socket and the zinc finish looks like it'll hold up fine in a dry shop environment.