Mutual Screw & Supply

M3-0.5 X 20mm Hex Head Cap Screws | Class 8.8 Steel Plain | Fully Threaded (20000 / Pkg.)

M3-0.5 X 20mm Hex Head Cap Screws | Class 8.8 Steel Plain | Fully Threaded - Main image
$158.08 $263.46 In stock

M3-0.5 x 20mm 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 20000

Specifications

  • Thread Size: M3-0.5
  • Length: 20mm
  • Thread Pitch: 0.5mm
  • Material: Steel
  • Grade: Class 8.8
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 20000
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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)

Amelia ★★★★★

The heads are crisp and grab a socket perfectly, making assembly on our production line noticeably faster. For nearly 20,000 pieces, the threading is impressively consistent with no burrs or duds in the batch. It's a solid value for high-volume industrial work.

Daniel U. ★★★★★

Ordered these for a production run and the fully threaded design saved me from having to stock multiple lengths. The hex heads seat cleanly with a standard Allen key, no stripped corners. Twenty thousand in one box is a lot of hardware, but they came well packed and sorted.

William ★★★★☆

I needed a massive quantity of M3 bolts for a production run, and these hex head cap screws fit the bill perfectly. The class 8.8 steel feels plenty strong for our assembly jigs, though a few heads showed slight burrs. For the price per piece at this volume, it's a solid deal.