Mutual Screw & Supply

M20-1.5 X 55mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully Threaded (25 / Pkg.)

M20-1.5 X 55mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully - Main image
$40.4 $57.72 In stock

M20-1.5 x 55mm 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: M20-1.5
  • Length: 55mm
  • Thread Pitch: 1.5mm
  • 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 (4.4 / 5 · 5 reviews)

Ryan ★★★★★

The hex head on these M20 bolts grabbed my socket perfectly without any slipping. The zinc plating looks clean and consistent across all 25 pieces, and they threaded smoothly into my machinery frame. Exactly what I needed for a secure, heavy-duty fastening job.

Hannah ★★★★★

I needed M20 bolts for a heavy assembly, and these fully threaded ones gripped perfectly with no slipping. The zinc plating looks clean and showed no rust after a couple of days in a slightly damp shop.

Julian ★★★★★

Installed these on a heavy-duty press frame, and the fully threaded length made alignment much easier than with partial threads. The zinc plating looks consistent and should hold up well in a dry workshop.