Mutual Screw & Supply

M20-2.5 X 170mm Hex Head Cap Screws | Class 10.9 Steel Zinc Plated | Partially Threaded (10 / Pkg.)

M20-2.5 X 170mm Hex Head Cap Screws | Class 10.9 Steel Zinc Plated | Partially - Main image
$55.52 $75.03 In stock

M20-2.5 x 170mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 10.9 Steel Zinc Plated construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 10

Specifications

  • Thread Size: M20-2.5
  • Length: 170mm
  • Thread Pitch: 2.5mm
  • Material: Steel
  • Grade: Class 10.9
  • Finish: Zinc Plated CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 10
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Harper W. ★★★★★

Used these to mount a heavy jig frame, and the partially threaded design let me get full thread engagement without bottoming out. The zinc plating has held up well in my shop so far, no rust after a week.

Alexander ★★★★★

Needed some sturdy bolts for a press jig I’m building, and the partial threading on these M20s makes them easy to snug deep into a tapped hole. The hex head grabs nicely with a socket, and the zinc plating looks clean enough to stay rust-free in my garage.

Julian D. ★★★★★

These are beefy screws for heavy equipment; the hex head accepts a socket wrench perfectly for torquing down. The 170mm length and partial threading let me fasten a thick bracket with a spacer, and the zinc plating looks like it’ll hold up well on the shop floor.