Mutual Screw & Supply

M18-2.5 X 55mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (25 / Pkg.)

M18-2.5 X 55mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$87.88 $127.36 In stock

These M18-2.5 x 55mm 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: Fully Threaded
  • Thread size: M18-2.5
  • Length: 55mm
  • 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: Fully Threaded
  • Thread size: M18-2.5
  • Length: 55mm
  • Measurement type: Metric
  • Pack quantity: 25 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 (5.0 / 5 · 5 reviews)

Miles ★★★★★

Used a full pack mounting heavy tooling on a mill table and every screw seated cleanly without any thread galling. The black oxide finish handled minor oil residue just fine and the hex socket drive didn't strip.

Christopher U. ★★★★★

Installed these in a jig for a production run, and the 12.9 grade held up perfectly under heavy torque. The hex socket drive seated the bit without any stripping.

Ryan ★★★★★

The black oxide finish looks sharp and held up fine during assembly on my jig setup. The 12.9 alloy steel feels rock solid, and the hex socket drive seated perfectly with my driver.