Mutual Screw & Supply

M3-0.5 X 25mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully Threaded (300 / Pkg.)

M3-0.5 X 25mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully - Main image
$25.14 $38.67 In stock

M3-0.5 x 25mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 8.8 Steel Zinc Plated construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 300

Specifications

  • Thread Size: M3-0.5
  • Length: 25mm
  • Thread Pitch: 0.5mm
  • Material: Steel
  • Grade: Class 8.8
  • Finish: Zinc Plated CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 300
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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 (4.4 / 5 · 5 reviews)

Claire ★★★★★

Finally, a pack of M3s where the threads are actually cut clean and consistently—every one of the 300 seated without a single cross-thread fight. The zinc plating is uniform, not patchy like some cheaper sets I’ve had. For the price, these are a solid buy for regular bench work.

Thomas V. ★★★★★

I've been using these M3 screws for a small robotics project, and the hex head makes them super easy to tighten with a driver without stripping. The zinc plating looks nice and seems durable, plus getting 300 for the price feels like solid value.

Aurora ★★★★★

I needed exactly 300 of these for the small fixtures I'm building, and the class 8.8 steel feels plenty sturdy for the torque I'm putting on them. The zinc plating is smooth and hasn't shown a speck of rust after a couple of weeks in a damp garage.