Mutual Screw & Supply

HOLO-KROME 42038 5/16-18 X 1/4" Knurled Cup Point Socket Set Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 42038 5/16-18 X 1/4" Knurled Cup Point Socket Set Screws | Alloy - Main image
$22.18 $33.1 In stock

5/16-18 X 1/4" knurled cup point socket set screws from Holo-Krome, part number 42038, 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: 42038
  • Thread Size: 5/16-18
  • Length: 1/4"
  • Point Type: Knurled Cup
  • Drive: Socket
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Package Quantity: 100
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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Brian O. ★★★★★

I needed a flush-fitting set screw for a camshaft sprocket, and the 5/16-18 thread with the cup point seated perfectly. The hex socket drive made installation in that tight space much easier than a slotted head would have.

Emma T. ★★★★★

These knurled cup points really bite into the shaft—no slipping under load. The black oxide finish is a nice bonus for keeping rust off during storage.

Mia ★★★★★

The hex socket was clean and precise, making installation easy even in tight spots. These set screws hold firmly on the shaft without any slipping, and the black oxide finish looks great for a professional build.