Mutual Screw & Supply

HOLO-KROME 42026 1/4-20 X 3/16" Knurled Cup Point Socket Set Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 42026 1/4-20 X 3/16" Knurled Cup Point Socket Set Screws | Alloy - Main image
$19.29 $26.79 In stock

1/4-20 X 3/16" knurled cup point socket set screws from Holo-Krome, part number 42026, 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: 42026
  • Thread Size: 1/4-20
  • Length: 3/16"
  • 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 (4.0 / 5 · 5 reviews)

Aurora M. ★★★★★

These little set screws fit the tapped holes on my milling machine perfectly. The black oxide finish seems like it will resist rust better than the zinc-plated ones I used before.

Sophia ★★★★★

The knurled cup point really bites into the shaft, so it stays locked even with vibration. I’ve used these on a few small indexing setups, and the black oxide finish seems to resist rust better than the plain steel ones. For the price of a hundred pieces, it’s hard to beat this quality.

David X. ★★★★☆

The hex socket drive made tightening them into tapped holes a breeze, and the black oxide finish looks clean and professional once installed. Only gripe is the 3/16" length is a bit short for thicker shaft collars, but for clamping thin components they do the job perfectly.