Mutual Screw & Supply

HOLO-KROME 42043 5/16-18 X 1/2" Knurled Cup Point Socket Set Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 42043 5/16-18 X 1/2" Knurled Cup Point Socket Set Screws | Alloy - Main image
$20.99 $32.29 In stock

5/16-18 X 1/2" knurled cup point socket set screws from Holo-Krome, part number 42043, 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: 42043
  • Thread Size: 5/16-18
  • Length: 1/2"
  • 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 (4.6 / 5 · 5 reviews)

Brian D. ★★★★★

The knurled cup point really digs in tight on my shaft collar, no slipping at all. These hex socket drivers fit perfectly with my Allen wrench, made installation quick and clean.

Isabella ★★★★★

I needed these for securing a pulley on a motor shaft, and the knurled cup point really bites into the metal without slipping. The black oxide finish gives them a nice, consistent look, and all 100 pieces in the package were cleanly threaded.

Natalie X. ★★★★★

The hex socket drive fits perfectly, and the black oxide finish gives them a clean, professional look that resists wear well. I used these to secure a gear on a shaft, and the knurled cup point held tight without slipping. Exactly what I needed for a solid mechanical connection.