Mutual Screw & Supply

HOLO-KROME 72376 1-8 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (10 / Pkg.)

HOLO-KROME 72376 1-8 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel - Main image
$61.86 $96.65 In stock

These 1-8 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: 1-8
  • 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: 1-8
  • Length: 3"
  • Threads per inch: 8
  • Measurement type: Inch
  • Pack quantity: 10 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)

George X. ★★★★★

I needed some long socket cap screws for a jig I was building, and these 1-8 x 3" alloy steel ones threaded in perfectly without any binding. The black oxide finish seems durable enough for repeated adjustments.

Penelope Q. ★★★★★

The black oxide finish on these screws makes them look incredibly clean and seem to resist scuffs perfectly during assembly on my jig. The hex socket drive gripped firmly without stripping, and the alloy steel feels rock solid for heavy machinery use. Exactly what I needed for precision work.

Ruby ★★★★★

The black oxide finish on these screws feels durable and professional, and they threaded perfectly into my tooling fixture without any binding. Exactly what I needed for a precision assembly.