Mutual Screw & Supply

1/4-20 X 3/4" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Fully Threaded | Alloy Steel Thermal Black Oxide (100 / Pkg.)

1/4-20 X 3/4" Socket Cap Screws | Hex Socket Drive | Nylon Pellet | Fully - Main image
$297.59 $472.37 In stock

These 1/4-20 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
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 1/4-20
  • Length: 3/4"
  • 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 style: Fully Threaded
  • Thread size: 1/4-20
  • Length: 3/4"
  • Threads per inch: 20
  • 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 (5.0 / 5 · 5 reviews)

William ★★★★★

The nylon pellet holds tight even when I've cranked them down into aluminum jig plates — no galling issues so far. Pack of 100 with consistent threads is exactly what I needed for fixture builds.

Sebastian R. ★★★★★

The black oxide finish on these screws feels really durable and should hold up well in my tooling setup. I've used several already for mounting parts on a fixture and the hex socket drive makes installation a breeze compared to standard hex heads.

Grace ★★★★★

Installed these on a jig I'm building and the hex socket drive made tightening them in tight spaces effortless. The nylon pellet is a nice touch for vibration resistance.