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48-Hour Best Seller Sale
Our most popular hand-forged hardware is 12% off, today only.
⚒️ Made in America
🇺🇸 Veteran-Powered
🔥 No extensions. Once it’s gone, it’s gone.
12% off
Best Seller Sale
3/8" x 5 1/2" Hex Head Bolt- Bulk Lot (100)
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.
Textures & Finishes
At Old West Iron, every piece of hardware is a work of craftsmanship—right down to the final finish. This page showcases how each of our hand-applied finishes appears across our four distinct hammered textures:
Smooth – clean and refined
Hammered Edges – subtle hand-worked edges with a classic touch
Distressed – irregular and aged for an antique look
All Hammered – bold texture across the entire surface for maximum character
We offer a wide range of hand-brushed and hand-rubbed finishes, each designed to complement our blacksmith-forged textures and bring out the natural depth of the iron:
Raw / Unfinished – natural iron, ready to age or finish as desired
Gunmetal – deep gray with a cool, industrial feel
Wrought Iron Patina – classic blacksmith finish with depth and age
Black – rich and solid for a bold, traditional look
Natural Rust – oxidized finish for a weathered, rustic appearance
Oil Rubbed Bronze – warm, bronze highlights over black with depth and sheen
Aged Bronze – Brighter bronze with dark highpoints for a worn, authentic look
Pewter – soft silver-gray highlights over black, subtle and elegant
Aged Pewter – deeper, bright silver with black high points for a timeworn feel
Rusty Metal Patina – hand brushed rust tones to mimic age and texture
Our bronze finishes are crafted with real bronze flake wax, while our pewter finishes feature real silver flake wax, giving each piece a luxurious, authentic sheen you won’t find in mass-produced finishes.
This visual guide helps you choose the perfect texture and finish combination to match your project’s style—whether you're creating a sleek modern entryway or restoring a centuries-old timber frame.
Please note: While we're happy to provide whichever combination you'd like, we don't recommend pairing oil rubbed bronze with our smooth texture. Smooth has no high and low points, so the bronze will not show up well and you'll be left with a piece that appears black. We recommend pairing oil rubbed bronze with a hammered texture (all hammered, distressed, or hammered edges) or smooth with a solid finish.
Lead Time:
Shipping Information
Shipping delivery time frame is different than lead time / production time.
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
Share:
- Black
- Raw/Unfinished
- Smooth
- Pyramid
- Hammered
- Raw/Unfinished
Bolts are often used when fastening items together for both structural and decorative purposes. Our 3/8" x 5 1/2" hex head bolts are available in bulk, providing a smooth and traditional aesthetic. For an industrial style, opt for a smooth texture, while hammered or pyramid textures offer a rustic feel. When purchasing, choose nuts and washers with the same diameter as the bolt for optimal performance. For structural purposes, a diameter of 3/8" or larger is recommended.
Head Shape: Hex
Head Texture: Smooth
Size Across Flats: 9/16"
Socket Size: 9/16" 8-Point
Head Height: 1/4"
Shank Diameter: 3/8"
Thread Pitch: 16
Thread Pitch Type: Course
- Raw: Metal is left untreated. Recommended for those wanting to add their own finish.
- Black: The part is painted flat black. We recommend this option for parts that have no texturing done to them and for outdoor use.
This bulk lot of 3/8" x 5 1/2" Hex Head Bolts are made with Grade 2-5 material for added strength and durability. All bolts are partial threaded unless custom ordered as full thread. To ask a question or request customizations such as full thread please reach out to us via office@oldwestiron.com.
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
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Matching Textures & Finishes
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