Mutual Screw & Supply

HOLO-KROME 33098 5/16-24 X 5/8" Cup Point Socket Set Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

HOLO-KROME 33098 5/16-24 X 5/8" Cup Point Socket Set Screws | Alloy Steel - Main image
$46.43 $74.88 In stock

5/16-24 X 5/8" cup point socket set screws from Holo-Krome, part number 33098, headless and hex socket driven for locating and clamping components on shafts and in tapped holes.

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

Specifications

  • Part Number: 33098
  • Thread Size: 5/16-24
  • Length: 5/8"
  • Point Type: 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 (5.0 / 5 · 5 reviews)

Sebastian ★★★★★

These set screws came in a heavy-duty bag, not a box, but every single one is cleanly threaded and the black oxide finish is even. I used them to lock a pulley on a motor shaft and the hex drive didn't strip during installation. Exactly the quality I needed for a reliable hold.

Matthew I. ★★★★★

The cup point really bites into the shaft once you tighten it down with the hex key, so I’m confident these set screws won’t loosen up during use. Drove them into a tapped hole on a small fixture and the black oxide finish doesn’t show wear so far.

James O. ★★★★★

I was a little worried about the hex socket stripping, but these held perfectly under torque for a jig I built. The black oxide finish looks clean and hasn't shown any wear after a few days of use.