Mutual Screw & Supply

M8 X 40mm Socket Shoulder Screws | Socket Head | Socket Drive | Alloy Steel (25 / Pkg.)

M8 X 40mm Socket Shoulder Screws | Socket Head | Socket Drive | Alloy Steel (25 - Main image
$32.41 $43.8 In stock

M8 x 40mm socket shoulder screws in Alloy Steel, with a precision-ground shoulder, socket head, and hex socket drive. Used as pivots, axles, and bearing surfaces.

  • Precision-ground shoulder
  • Socket (hex) drive
  • Alloy Steel construction

Specifications

  • Shoulder Diameter: M8
  • Length: 40mm
  • Thread Size: M6
  • Material: Alloy Steel
  • Package Quantity: 25
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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 (4.4 / 5 · 5 reviews)

Samuel ★★★★★

The precision-ground shoulder is exactly what I needed for a bearing surface on a custom jig, and the spacing of the threads feels spot-on for a snug fit. Took a bit of elbow grease with a hex key, but once seated they hold rock-solid with zero wobble.

Matthew ★★★★★

Needed a precise pivot for a small mechanism and the ground shoulder was spot on—no wobble. The hex drive made seating them a quick job, and all 25 arrived with clean threads. Solid value for a set this uniform.

Joshua ★★★★★

The shoulder on these M8s is ground so smooth they slide into a bearing bore without any gritty feel, and the hex socket drive grabs the Allen key cleanly every time. Just used a few as pivot pins on a jig and they're holding up great under repeated load.