Mutual Screw & Supply

KFB3-440-6 | #4-40 PEM Self-Clinching Nuts | Steel (100 / Pkg.)

KFB3-440-6 | #4-40 PEM Self-Clinching Nuts | Steel (100 / Pkg.) - Main image
$12.63 $20.7 In stock

These #4-40 self-clinching nuts are manufactured from Steel. They are well suited to threaded fastening with bolts and studs.

  • Material and finish: Steel
  • Thread size: #4-40
  • Applications: Threaded fastening with bolts and studs

Specifications

  • Product type: Self-Clinching Nuts
  • Material: Steel
  • Finish: Plain
  • Thread size: #4-40
  • 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 (4.4 / 5 · 5 reviews)

Penelope ★★★★★

Needed a reliable way to fasten a small bracket in a tight spot, and these steel self-clinching nuts worked perfectly—the #4-40 threads grabbed the bolt securely without needing access to the back side. They installed cleanly and held firm under vibration.

Samuel E. ★★★★★

Pressed perfectly into the steel chassis with zero distortion — the #4-40 threads cleaned up nicely with a tap. Fits standard bolt sizes exactly as expected, and the 100-pack gives me plenty of spares for future projects.

Grace ★★★★★

These #4-40 self-clinching nuts pressed perfectly into the sheet metal without deforming it. The steel construction feels nice and solid for a permanent threaded hole. Exactly what I needed for a tight assembly where a loose nut would be a nightmare.