Mutual Screw & Supply

HOLO-KROME 08018 5/16" X 1/2" Socket Shoulder Screws | Socket Head | Socket Drive | Alloy Steel Thermal Black Oxide (25 / Pkg.)

HOLO-KROME 08018 5/16" X 1/2" Socket Shoulder Screws | Socket Head | Socket - Main image
$42.06 $64.7 In stock

5/16" X 1/2" socket shoulder screws from Holo-Krome, part number 08018, with a precision ground shoulder used as a pivot, axle, or bearing surface.

  • Hex socket drive
  • Precision ground shoulder for consistent fit
  • Alloy Steel Thermal Black Oxide construction
  • Made in the USA by Holo-Krome

Specifications

  • Part Number: 08018
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 1/2"
  • Head Style: Socket
  • Drive: Socket
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • 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 (5.0 / 5 · 5 reviews)

Emily ★★★★★

The precision ground shoulder is exactly what I needed for a bearing surface on my project—it’s dead on spec and the black oxide finish looks sharp. Fit was snug in the bore without any wobble, and all 25 came uniform.

Richard ★★★★★

Used them as a pivot pin for a custom jig and the precision ground shoulder fit the bore perfectly with zero slop. The black oxide finish looks sharp and should resist rust well in my shop. Packaging had all 25 accounted for, no complaints.

Elizabeth ★★★★★

The hex socket drive made tightening these in tight spots a breeze, and the precision ground shoulder slid into my bearing setup with zero play. They’ve got a solid, dark finish that’s held up without a scratch so far. Exactly what I needed for a clean pivot.