Mutual Screw & Supply

3/8-16 X 3-1/2" Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.)

3/8-16 X 3-1/2" Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.) - Main image
$102.68 $155.58 In stock

3/8-16 x 3 1/2" cup point socket set screws in Alloy Steel, with a hex socket drive for high-torque adjustment in tight spaces.

  • Hex socket drive
  • Cup Point tip
  • Alloy Steel construction

Specifications

  • Thread Size: 3/8-16
  • Length: 3 1/2"
  • Point: Cup Point
  • Material: Alloy Steel
  • 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 (3.8 / 5 · 5 reviews)

Hazel V. ★★★★★

These set screws held a gear hub perfectly on my mill after I torqued them down with a hex key. The 3 1/2 inch length gave me plenty of thread engagement, and the alloy steel felt super solid the whole time. Just the right amount of grip from the cup point for a permanent lock.

Sophia T. ★★★★☆

The cup point bites into the shaft nicely and holds firm under vibration, which is exactly what I needed for a stubborn pulley. Only gripe is the packaging—a few arrived with a bit of oil residue, but they cleaned up fine. Solid buy for the price.

Ellie ★★★★☆

The cup point really bites into the shaft, which I needed for a stubborn gear repair. At 3-1/2 inches long, they were just right for my application, though one screw had a slightly rough thread.