Mutual Screw & Supply

M18-2.5 X 55mm Hex Head Cap Screws | Class 8.8 Steel Plain | Fully Threaded (170 / Pkg.)

M18-2.5 X 55mm Hex Head Cap Screws | Class 8.8 Steel Plain | Fully Threaded - Main image
$157.72 $216.06 In stock

M18-2.5 x 55mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 8.8 Steel Plain construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 170

Specifications

  • Thread Size: M18-2.5
  • Length: 55mm
  • Thread Pitch: 2.5mm
  • Material: Steel
  • Grade: Class 8.8
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 170
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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 (4.8 / 5 · 5 reviews)

Christopher ★★★★★

For a heavy assembly job I was dreading, these fully threaded M18s went in smooth and torqued down without a single stripped head. The hex drive gripped perfectly, and having 170 in one pack means I’ve got spares for the next project without reordering. Class 8.8 strength feels solid for the price.

Miles F. ★★★★★

The threads on these M18-2.5 x 55mm cap screws are cut cleanly, and the fully threaded design meant I didn’t have to fiddle with extra washers or spacers on my press frame. The hex heads seated perfectly with a socket drive, and all 170 pieces came without a single burr or damaged thread. Exactly wh

Jason J. ★★★★★

I used these for bolting down heavy steel brackets in my shop, and the M18-2.5 threading held up perfectly under tightening. The hex head took a socket easily without any slipping.