3/8" Square Cap Nut - Smooth

$2.99

Backed by Our 100% Quality Guarantee.

If a piece arrives defective or damaged, we’ll replace it.

Hand-forged in Idaho by American blacksmiths. Every piece is individually crafted for authentic Old-World durability.

Fastener Finish Color: Black
In magazzino

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Free Shipping on Domestic Orders $60+
Flat Rate Shipping on Domestic Orders:

$19.99 and under $9 Shipping

$39.99 and under $12 Shipping

$59.99 and under $12 Shipping

3/8" Square Cap Nut - Smooth

$2.99

$2.99

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Fastener Finish Color: Black
  • Black
  • Raw/Unfinished (Silver-Grey)
  • Gun Metal - Indoor Finish
  • Oil Rubbed Bronze
  • Pewter
  • Aged Bronze
  • Aged Gold
  • Aged Pewter
  • Natural Rust

Veteran-Powered

US Army Veteran Blacksmiths, American Grit in Every Strike

Original Designs

Historically Inspired, Uniquely Ours.

From Our Family Forge

Crafted by Multi-Generational Family Blacksmiths

This new addition to our hardware line offers the rare square cap nuts. Available in smooth square, hammered square, and the impossible to find pyramid cap nut. Shown left to right: Hammered, Pyramid Hammered, Smooth Approximate overall size is 5/8" square Threaded to receive a 3/8"-16 coarse thread bolt.

3/8" Square Cap Nut

The 3/8" Square Cap Nut - Smooth is designed to provide a perfect finishing touch for any project, with a modern yet rustic style appearance. With its standard coarse thread square nut design, this product is a reliable and durable choice for all your needs.

    • Thread: 3/8" -16
    • Cap Width: 5/8"
    • Cap Height: 1/2"
    • Thread Depth: 3/8"

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