Mutual Screw & Supply

#4-40 X 3/4" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel (600 / Pkg.)

#4-40 X 3/4" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel (600 - Main image
$12.47 $19.8 In stock

These #4-40 x 3/4" socket cap screws are manufactured from Alloy Steel, featuring a hex socket drive and a flat head. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel
  • Drive: Hex Socket
  • Head style: Flat
  • Thread size: #4-40
  • Length: 3/4"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Plain
  • Head style: Flat
  • Drive type: Hex Socket
  • Thread size: #4-40
  • Length: 3/4"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 100 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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)

Zoe ★★★★★

Pulled these out for a jig build and the hex socket drive engages perfectly with my driver, no stripping. The 3/4" length was just right for a tight assembly. Great value for 600 pieces.

Ruby ★★★★★

The heads sit flush without any wobble, and the alloy steel feels solid when torqued down on my jig. Packed a full 600 in the box, so I’m set for a long time on these.

Leo O. ★★★★★

The hex socket drive grips the Allen key perfectly without any stripping, even when I’m torquing them into tight spots on my tooling fixtures. Flat heads sit flush exactly as they should, and all 600 came clean with no burrs or bad threads in the batch.