Mutual Screw & Supply

HOLO-KROME 43030 5/16-24 X 1/2" Knurled Cup Point Socket Set Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 43030 5/16-24 X 1/2" Knurled Cup Point Socket Set Screws | Alloy - Main image
$20.67 $32.29 In stock

5/16-24 X 1/2" knurled cup point socket set screws from Holo-Krome, part number 43030, headless and hex socket driven for locating and clamping components on shafts and in tapped holes.

  • Hex socket drive
  • Knurled Cup point
  • Alloy Steel Thermal Black Oxide construction
  • Made in the USA by Holo-Krome

Specifications

  • Part Number: 43030
  • Thread Size: 5/16-24
  • Length: 1/2"
  • Point Type: Knurled Cup
  • Drive: Socket
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Package Quantity: 100
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 (4.6 / 5 · 5 reviews)

David ★★★★★

The knurled cup point gives a great grip for tightening into tight spots, and the black oxide finish seems durable. Worked perfectly for securing a small shaft in a test rig I built.

Mia ★★★★★

I needed set screws that wouldn't strip during installation, and these knurled cup points gripped the shaft perfectly without sliding around. Even better, the hex socket drove cleanly with no cam-out.

Timothy P. ★★★★★

Finally found a set screw that actually holds tight on a shaft without stripping. The knurled cup point grips noticeably better than the smooth ones I've been using. These will definitely be my go-to from now on.