Mutual Screw & Supply

M20-2.5 X 45mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (25 / Pkg.)

M20-2.5 X 45mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded - Main image
$40.94 $60.21 In stock

These M20-2.5 x 45mm 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
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M20-2.5
  • Length: 45mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M20-2.5
  • Length: 45mm
  • 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 (4.6 / 5 · 5 reviews)

Richard ★★★★★

The hex socket drive made it easy to torque these down precisely on my milling fixture. The black oxide finish gives them a nice, clean look that resists fingerprints during assembly.

Violet H. ★★★★★

Installed them on a jig for a production run and every single one torqued down perfectly without a hickup. The class 10.9 alloy steel feels solid enough for heavy use, and the hex socket drive made installation in tight spots a lot easier than I expected.

Nicholas ★★★★★

The black oxide coating on these screws looks great and seems durable—no chips or scratches after installing them in a tool holder. They threaded smoothly into tapped holes without binding, which was a relief for M20 hardware.