Mutual Screw & Supply

5/8-11 X 2-1/4" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (25 / Pkg.)

5/8-11 X 2-1/4" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel - Main image
$183.68 $274.15 In stock

These 5/8-11 x 2-1/4" 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 size: 5/8-11
  • Length: 2-1/4"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Hex Socket Drive
  • Thread size: 5/8-11
  • Length: 2-1/4"
  • Threads per inch: 11
  • Measurement type: Inch
  • 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 (4.8 / 5 · 5 reviews)

Christopher ★★★★★

The black oxide finish wiped clean easily and the hex drive grabbed without any slipping, which I appreciate when torquing them down on my fixture plates. These are holding up well on a heavy-duty jig I've been running all week, so the alloy steel feels like the right choice.

Henry ★★★★★

Fit was spot on for my jig setup, and the hex socket drive grabbed cleanly without any stripping. The thermal black oxide coating feels tough and consistent, exactly what I need for repeated clamping in a machine fixture.

Julian D. ★★★★★

Had to swap out some stripped bolts on a milling jig, and these alloy steel screws threaded in smooth with no binding. The black oxide finish looks clean and should resist rust way better than the plain steel ones I was using before.