Mutual Screw & Supply

5/16-18 X 3-1/2" Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.)

5/16-18 X 3-1/2" Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.) - Main image
$203.58 $339.3 In stock

5/16-18 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: 5/16-18
  • 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 (4.2 / 5 · 5 reviews)

Elizabeth ★★★★★

The cup point bites into the shaft like a champ, and at 3-1/2 inches long these are perfect for locking down a sprocket where I couldn't fit a regular bolt. The alloy steel feels sturdy, no flex when I torqued them with my hex wrench. Took a while to find this length in a full pack, so I'm glad I gr

Nicholas ★★★★★

Installed a few of these to lock down a pulley on a custom fixture, and the hex socket made tightening in that cramped spot way easier than a hex key. The 3-1/2 inch length gave just enough reach without being unwieldy.

Isabella M. ★★★★☆

The cup point bites into the shaft nicely and the alloy steel feels plenty tough for the torque I put on them. Only gripe is the 3-1/2" length is a bit long for some of my tighter spots, but for the price per piece these are hard to beat.