Mutual Screw & Supply

M8-1.25 X 55mm Hex Head Cap Screws | Class 10.9 Steel Zinc Plated | Fully Threaded (750 / Pkg.)

M8-1.25 X 55mm Hex Head Cap Screws | Class 10.9 Steel Zinc Plated | Fully - Main image
$157.36 $245.87 In stock

M8-1.25 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 750

Specifications

  • Thread Size: M8-1.25
  • Length: 55mm
  • Thread Pitch: 1.25mm
  • Material: Steel
  • Grade: Class 10.9
  • Finish: Zinc Plated CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 750
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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)

Sophia ★★★★★

Used these to secure some heavy shelving in the warehouse and the fully threaded shaft gave me a solid, consistent grip all the way in. The zinc plating on these M8 bolts seems nice and even, so I'm not worried about rust. Really solid hardware for the price, especially getting 750 in one box.

Jason ★★★★★

The hex heads grabbed my socket wrench perfectly on the first try, and the zinc plating looks uniform across all 750 pieces. Threading them into steel frames was smooth, no binding or stripped threads—exactly what I need for a big assembly job.

Eva ★★★★★

These bolts are rock solid with a clean zinc finish that fits deep sockets without any play. The 10.9 grade steel gives me total confidence torquing them on heavy equipment, and at this price per piece, I'm stocked for years.