Mutual Screw & Supply

M20-2.5 X 55mm Hex Head Cap Screws | Class 10.9 Steel Plain | Fully Threaded (20 / Pkg.)

M20-2.5 X 55mm Hex Head Cap Screws | Class 10.9 Steel Plain | Fully Threaded - Main image
$36.76 $49.01 In stock

M20-2.5 x 55mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 10.9 Steel Plain construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 20

Specifications

  • Thread Size: M20-2.5
  • Length: 55mm
  • Thread Pitch: 2.5mm
  • Material: Steel
  • Grade: Class 10.9
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 20
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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)

Leo ★★★★★

These M20 cap screws were exactly what I needed for a heavy-duty jig on my press. The class 10.9 rating paired with a full thread gives excellent grip under high torque, and a 20-pack keeps extra on hand.

Emma ★★★★★

My torque wrench clicked off cleanly at spec on all twenty of these, and the class 10.9 hardness means I didn’t have to worry about stripping the threads during a tight flange repair. The hex heads have that dry, matte finish that grips a socket without slipping, and the 55mm length gave just enough

Leo U. ★★★★☆

The fully threaded length is exactly what I needed for a custom jig, and the hex head seated well with a standard socket. Only gripe is the plain finish shows scuffs quickly after a couple of wrenches, but the 10.9 steel feels solid for the price.