Mutual Screw & Supply

8103-A-0440 | #4-40 X 5/16" Amatom Hex Standoffs | Aluminum (400 / Pkg.)

8103-A-0440 | #4-40 X 5/16" Amatom Hex Standoffs | Aluminum (400 / Pkg.) - Main image
$6.8 $10 In stock

These #4-40 x 5/16" hex standoffs are manufactured from Aluminum. They are well suited to spacing and mounting circuit boards and panels.

  • Material and finish: Aluminum
  • Thread size: #4-40
  • Length: 5/16"
  • Applications: Spacing and mounting circuit boards and panels

Specifications

  • Product type: Hex Standoffs
  • Material: Aluminum
  • Thread size: #4-40
  • Length: 5/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Pack quantity: 100 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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)

Steven S. ★★★★★

The threads cut cleanly on these, so no cross-threading when mounting circuit boards. A full box of 400 is great value for panel spacing work.

Avery K. ★★★★★

Finally, aluminum standoffs that are actually machined cleanly—no burrs on the threads to fight with. These #4-40 x 5/16" ones fit perfectly for mounting a small PCB in my enclosure.

Ava ★★★★★

Got a whole bag of these for a project, and the 5/16" length is exactly what I needed to stack a couple of PCBs cleanly. The aluminum feels solid, though I did strip one thread being a bit too aggressive with the driver.