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3.0 out of 5 stars. 2 reviews
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A woman outside with a dog

Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack

Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack

Item # 328278299

Hillman Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack
Hillman Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack
$1.99

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Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack

Item # 328278299

Hillman Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack
Hillman Hillman 3/8 in.-16 TPI Grade 5 Serrated Whiz Lock Nuts, 2-Pack

$1.99

Shopping at

Grassland (franklin) TN

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Free standard delivery on online footwear & Clothing purchases of $49 and over.

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Grade 5 Whiz Lock Nuts, also known as serrated flange lock nuts, are ideal for applications in which a vibration or torque-resistant fastener is desired. They're strong, sturdy and reliable. Sold in sets of 2.

  • VIBRATION-RESISTANT: Offers better resistance to loosening by vibration compared to hex nuts
  • SERRATED FLANGE: Unique design grips material for additional security
  • 3/8"-16 USS COARSE THREAD: Matches bolts or rods of a 3/8"-16 coarse thread size
  • STRONG, STURDY, RELIABLE: Made of high-quality steel

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    • convenient
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    • staff
    1 to 1 of 2 Reviews .
    1 – 1 of 2 Reviews
    Southwest Georgia
    Reviews 6

    Hillman Grade 5 Flange Nuts, 3/8" X 16 tpi.

    6 years ago
    Refurbishing my 200 gallon sprayer, I needed a few nuts and bolts. Sometimes it's convenient to weld nuts in place rather than wrenching them on in hard to access places. When I do this I prefer flange nuts. It gets the weld a little further from the bolt hole, and I am less likely to need to chase the threads with a tap. Looking online I found that Tractor Supply had the hardware I needed in stock at my local store. I ordered and paid online, and received an email shortly there after stating my order was ready for pickup. I called the store when I arrived and an associate brought my order out the the truck. You can't beat Tractor Supply for Service or Price.

    Yes, I recommend this product.

    1 Ratings-Only Review