Mutual Screw & Supply

HOLO-KROME 72316 3/4-10 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (25 / Pkg.)

HOLO-KROME 72316 3/4-10 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel - Main image
$90.45 $133.02 In stock

These 3/4-10 x 3" socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Socket Drive
  • Thread size: 3/4-10
  • Length: 3"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Socket Drive
  • Thread size: 3/4-10
  • Length: 3"
  • Threads per inch: 10
  • 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)

Isabella R. ★★★★★

Used a few of these to secure a fixture on a milling table, and the black oxide finish hasn't shown a single spot of rust yet. The hex socket seated perfectly with no stripping, even under decent torque. They feel solid for precision work.

Joseph ★★★★★

I’m rebuilding a jig for a production line and these 3/4-10 x 3" cap screws threaded in cleanly with zero binding, even with the thermal black oxide coating. The socket drive gripped tight with my hex wrench, and the alloy steel feels solidly machined—no burrs or rough threads. Exactly what I needed

Emma J. ★★★★★

The black oxide finish on these is flawless, and the hex socket drive made installation a breeze with my torque wrench. They’re solid alloy steel through and through, exactly what you want for a precision fixture I’m building.