Mutual Screw & Supply

#4-40 X 5/16" Nylon Pellet Cup Point Socket Set Screws | Alloy Steel (100 / Pkg.)

#4-40 X 5/16" Nylon Pellet Cup Point Socket Set Screws | Alloy Steel (100 / - Main image
$26.49 $42.05 In stock

#4-40 x 5/16" Nylon Pellet 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: #4-40
  • Length: 5/16"
  • 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 (5.0 / 5 · 5 reviews)

Elizabeth Z. ★★★★★

I’ve used these in some tight spots where I needed to adjust tension without stripping anything, and the hex socket drive makes it a breeze to torque them down. Each screw’s cup point seats really well, and a hundred of them means I’ve got plenty for all my fiddly little projects.

Penelope W. ★★★★★

The nylon pellet on these set screws grips well without marring the shaft, and the hex socket makes them easy to tighten in a tight spot. I’ve used them to lock a pulley in place, and they haven’t budged.

Madison ★★★★★

The cup point bites into the shaft firmly, and the hex socket lets me torque them down in spots where a wrench wouldn't fit. The nylon pellet locks them in place without stripping, and a hundred of these for the price is a steal.