Mutual Screw & Supply

M3-0.5 X 20mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Zinc Plated (900 / Pkg.)

M3-0.5 X 20mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$35.03 $51.51 In stock

These M3-0.5 x 20mm socket cap screws are manufactured from Alloy Steel Zinc Plated, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Zinc Plated
  • Head style: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 20mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 10.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 20mm
  • Measurement type: Metric
  • Pack quantity: 900 per package
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.4 / 5 · 5 reviews)

Abigail ★★★★★

I've been using these M3-0.5 x 20mm socket cap screws for a few small jigs I'm building, and the Class 10.9 alloy steel feels much more robust than the usual hardware store stuff. The hex socket drive grabs cleanly without stripping, even when I'm torquing them down pretty tight.

Victoria ★★★★★

Finally found a batch of M3 screws that actually have clean threads all the way to the head. The hex socket drive is sharp and hasn't stripped on any of the 50 I've used so far.

Richard Y. ★★★★★

Bought these for a jig I'm building and the 900 count means I won't run out mid-project. The zinc plating looks even and the threads are clean, so they seat smoothly without binding.