Mutual Screw & Supply

M12 X 40mm Socket Shoulder Screws | Socket Head | Socket Drive | Alloy Steel (25 / Pkg.)

M12 X 40mm Socket Shoulder Screws | Socket Head | Socket Drive | Alloy Steel - Main image
$53.67 $89.45 In stock

M12 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: M12
  • Length: 40mm
  • Thread Size: M10
  • 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 (4.6 / 5 · 5 reviews)

Ruby ★★★★★

I've been using these as axle pins in a small automation rig, and the hex socket drive made installation effortless. The precision-ground shoulder gives a noticeably smooth, consistent bearing surface, and the alloy steel feels solid under load. Exactly what I needed for pivot points.

Andrew M. ★★★★★

The precision-ground shoulder on these screws made them perfect for a custom jig I’m building—no wobble at all. They threaded smoothly into my M12 tapped holes without any binding. I’ll definitely order more when I need spare axles.

Ryan ★★★★★

Used a few as pivot pins for a small mechanical assembly and the precision-ground shoulder made the fit perfectly smooth, no binding at all. The hex socket drive seated the driver firmly, and all 25 pieces came with consistent threading. Exactly what I needed for bearing surfaces.