Mutual Screw & Supply

M3-0.5 X 30mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Zinc Plated (600 / Pkg.)

M3-0.5 X 30mm Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$34.19 $51.03 In stock

These M3-0.5 x 30mm 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: 30mm
  • 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 12.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M3-0.5
  • Length: 30mm
  • Measurement type: Metric
  • Pack quantity: 600 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 (4.8 / 5 · 5 reviews)

Hannah T. ★★★★★

These M3 screws have a clean, uniform thread all the way along the 30mm shaft, making them perfect for my jig assembly. The hex socket drive fits my Allen key snugly without any wobble, and the zinc coating gives them a nice, even finish. I’ve already ordered another pack for future projects.

Zoe W. ★★★★★

Finally got around to replacing the worn fasteners on my jig, and these 12.9 alloy steel screws feel seriously solid—the zinc plating took a few scuffs without a hint of rust. The hex socket drive bites cleanly, no stripped heads even with a cheap driver; 600 pieces means I won’t run dry for a while

Miles ★★★★★

Needed a batch of M3 screws for a small CNC fixture build, and these worked perfectly. The hex socket drive bit into the driver cleanly without any cam-out, and the zinc plating looked consistent on every single one of the 600.