Mutual Screw & Supply

HOLO-KROME 42030 1/4-20 X 5/16" Knurled Cup Point Socket Set Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 42030 1/4-20 X 5/16" Knurled Cup Point Socket Set Screws | Alloy - Main image
$20.43 $28.37 In stock

1/4-20 X 5/16" knurled cup point socket set screws from Holo-Krome, part number 42030, 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: 42030
  • Thread Size: 1/4-20
  • Length: 5/16"
  • Point Type: Knurled Cup
  • Drive: Socket
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Package Quantity: 100
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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)

Emily ★★★★★

These set screws held tightly against the shaft on a small motor mount I built, with no slipping at all. The hex socket drove in easily with a standard Allen key.

Ryan ★★★★★

The knurled cup point on these set screws really bit into the shaft, so my clamp held fast on the first try. The black oxide finish seems durable and won't rust easily. I'm glad I grabbed this 100-pack for future projects.

Benjamin M. ★★★★★

Had to swap out a stripped set screw on a motor shaft, and these knurled cup points grabbed perfectly without slipping. The black oxide finish also made them easy to see against the steel.