Mutual Screw & Supply

M20-1.5 X 55mm Hex Head Cap Screws | Class 10.9 Steel Zinc Plated | Fully Threaded (25 / Pkg.)

M20-1.5 X 55mm Hex Head Cap Screws | Class 10.9 Steel Zinc Plated | Fully - Main image
$53.16 $81.79 In stock

M20-1.5 x 55mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 10.9 Steel Zinc Plated construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 25

Specifications

  • Thread Size: M20-1.5
  • Length: 55mm
  • Thread Pitch: 1.5mm
  • Material: Steel
  • Grade: Class 10.9
  • Finish: Zinc Plated CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 25
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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)

Ava ★★★★★

Installed a set of these on a heavy-duty jig I'm building, and the Class 10.9 strength gives me real confidence they won't strip under load. The fully threaded design was perfect for getting a solid grip in a deep tapped hole.

Daniel W. ★★★★★

The zinc plating looks clean and even across all twenty-five, and the fully threaded length saved me from having to stack washers on a tight machinery mount. Class 10.9 rating gives me confidence these won’t stretch under load. Wrench fit was snug right out of the bag, no stripped hex heads.

Alexander C. ★★★★★

Had to swap out some old bolts on a large conveyor frame; these M20-1.5 screws threaded in smoothly with no binding. The zinc plating on the hex heads looks clean and hasn't shown any rust after a few weeks of factory use.