Mutual Screw & Supply

5/16-24 X 3/4" Socket Cap Screws | Flat Head Hex Socket Drive | Nylon Pellet | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

5/16-24 X 3/4" Socket Cap Screws | Flat Head Hex Socket Drive | Nylon Pellet | - Main image
$75.07 $121.08 In stock

These 5/16-24 x 3/4" 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
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 5/16-24
  • Length: 3/4"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 5/16-24
  • Length: 3/4"
  • Threads per inch: 24
  • Measurement type: Inch
  • Pack quantity: 100 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)

Adam B. ★★★★★

The hex socket drive on these screws made installation a breeze with my Allen wrench. The black oxide finish looks professional on my tooling fixture, and all 100 pieces arrived clean and well-packaged.

Claire A. ★★★★★

The nylon pellet locking feature kept these socket cap screws perfectly in place on my drill jig after hours of use. The hex drive made seating them flush a breeze, and the black oxide finish looks professional against the steel plate.

Aurora ★★★★★

Had to tighten some jig fixtures at the shop and these nylon pellet screws held fast without backing out, even under vibration. The black oxide finish already looks like it’ll resist rust better than the plain steel ones I used before.