5/16" Dia. Hammered Square Head Bolt

11 reviews

Bolts are typically used for fastening items together. Both used for structural and decorative applications. Our square bolts appeal more to a rustic design especially with our texture of hammered or pyramid. These square head bolts add just the flare you need for your project. When purchasing nuts and washers with this item you will want to select the same size as the diameter of the bolt.


We recommend using 3/8" diameter and above for structural applications.

    • Head Shape: Square
    • Head Texture: Hammered
    • Head Size: 1/2"
    • Socket Size: 1/2" 8 Point Socket
    • Head Height: 3/16"
    • Shank Diameter: 5/16"
    • Thread Pitch: 18
    • Thread Pitch Type: Course
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Customer Reviews
4.9 Based on 11 Reviews
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Masa R.
United States United States

Hammered square head bolts

The bolts are beautiful. We did need to leave them in the sun many days to off gas the paint. They did not fit into the 1/2” 8 point socket. Other than that we are very happy with them.


Old West Iron

Thank you so much and we're happy to hear this!

Peter D.
United States United States


Nice to see a vendor who has integrity in what they say they do, when they can do it, and follow up on what the customer's thoughts on it were. All this on an order of, what, a hundred dollars or so. You'll see me again, and hopefully those that I shared my experience with.


Old West Iron

Thank you and we're happy to hear this!

Larry H.
United States United States

Perfect Finish Detail

Square hammered washers and 1/4" Square bolts, the perfect finish detail to our walnut and cherry mantle.

Old West Iron 5/16 Dia. Hammered Square Head Bolt ReviewOld West Iron 5/16 Dia. Hammered Square Head Bolt ReviewOld West Iron 5/16 Dia. Hammered Square Head Bolt Review

Old West Iron

Thank you for this positive feedback! looking forward to having you again!

Lynn N.
United States United States

Very pleased

Square head hammered bolts were the perfect detail for my fireplace trim project.


Old West Iron

I'm sure they pair just perfectly together! Thank you for sharing!

United States United States

Exactly what I was looking for

The square plate washers and square head bolts were exactly what I was looking for and perfectly complement the hand hewn barn beam mantle that I installed in our new house. The packing for shipping was pretty abysmal though. Considering that I was very much paying for the 'look' of the product, it was pretty disappointing to find the bolts and washers just thrown in the bottom of a box where they could bang together during transport. There was more than enough paper in the box where the bolts and washers could have been better wrapped to provide at least some protection of the finish.

Old West Iron 5/16 Dia. Hammered Square Head Bolt Review