Mutual Screw & Supply

M4 X 20mm Cup Point Socket Set Screws | Alloy Steel (500 / Pkg.)

M4 X 20mm Cup Point Socket Set Screws | Alloy Steel (500 / Pkg.) - Main image
$28.94 $43.85 In stock

M4 x 20mm 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: M4-0.7
  • Length: 20mm
  • Point: Cup Point
  • Material: Alloy Steel
  • Package Quantity: 500
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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 (4.8 / 5 · 5 reviews)

George Z. ★★★★★

Installed these on a small gearbox shaft and they held firm without stripping. The cup point digs in nicely on hardened steel, and the hex socket made tightening in a cramped spot much easier than a slotted set screw would have.

Jason W. ★★★★★

Used these to lock down a pulley on a motor shaft and the cup point really dug in without stripping the hex drive. The 20mm length gave just enough reach in a tight spot, and the alloy steel feels solid for the price.

Violet ★★★★★

The hex socket drive made installing these in tight spots on my machine much easier than I expected. Each screw held firm with the cup point digging in nicely. This pack of 500 should last me through several projects.