Mutual Screw & Supply

M6-1 X 140mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (50 / Pkg.)

M6-1 X 140mm Socket Cap Screws | Hex Socket Drive | Partially Threaded | Class - Main image
$28.48 $45.93 In stock

These M6-1 x 140mm socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M6-1
  • Length: 140mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M6-1
  • Length: 140mm
  • Measurement type: Metric
  • Pack quantity: 50 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 (4.6 / 5 · 5 reviews)

John D. ★★★★★

The hex drive engagement on these M6 socket cap screws feels incredibly precise, and the thermal black oxide finish seems durable. I used them to secure a base plate on a custom press fixture, and the 140mm length was perfect for the deep reach I needed without any wobble.

Abigail W. ★★★★★

I used these for a tooling jig I’ve been building, and the 12.9 alloy steel feels rock-solid under clamping loads. The partial threading on the 140mm length let me get just the right grip depth without extra clearance issues.

Edward ★★★★★

Finally, a cap screw that doesn't strip out under high torque—these M6-1 x 140mm handles like a dream in my jig fixtures. The thermal black oxide finish feels durable and resisted scratches during assembly.