Mutual Screw & Supply

M8-1.25 X 55mm Hex Head Cap Screws | Class 8.8 Steel Yellow Zinc | Fully Threaded (150 / Pkg.)

M8-1.25 X 55mm Hex Head Cap Screws | Class 8.8 Steel Yellow Zinc | Fully - Main image
$32.55 $45.21 In stock

M8-1.25 x 55mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 8.8 Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 150

Specifications

  • Thread Size: M8-1.25
  • Length: 55mm
  • Thread Pitch: 1.25mm
  • Material: Steel
  • Grade: Class 8.8
  • Finish: Yellow Zinc CR+6
  • Thread Style: Fully Threaded
  • Pack Quantity: 150
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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)

Riley ★★★★★

The hex heads are perfectly machined, so my 13mm socket grips them without any wobble. These 55mm fully threaded bolts are exactly the length I needed for a steel frame project, and the class 8.8 strength gives me solid confidence.

Nicholas G. ★★★★★

The yellow zinc coating on these M8 bolts is holding up well so far, and the fully threaded shaft made installation in a jig frame really straightforward. Had to use a socket wrench to get them seated fully, but the hex head gave a solid grip without stripping.

George R. ★★★★★

These bolts tightened up perfectly with a socket drive, no stripping or wobble. The yellow zinc coating looks clean and consistent across all 150 pieces, and they seated flush in my steel brackets. Exactly what I needed for a solid machinery frame.