Silicon Bronze Carriage Bolts are designed for throughbolting where the square neck is used to keep the bolt from turning as a nut is tightened on the other end. 4" or shorter will be fully threaded. 5" and above will have between approximately 7/8 and 2-1/2 inches of thread.
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Silicon Bronze Carriage Bolt Use solid Silicon Bronze to avoid corrosion.
MET / STD:
Replace old brass fasteners
Cut threads are the same diameter as the shaft resulting in close fit in drilled holes.
Necessary for project
For longevity and corrosion prevention, bronze bolts and screws are necessary fasteners for building boats. I haven't installed mine yet but they appear as advertised.
Great bolt supplier
I ordered a box of brass acorn nuts and they arrived in 3 days.
Santa cruz, Ca.
Great Quality in a hard-to-find bolt
These great bolts are hard to find. JD has such a phemoninal selection of specialty hardware in non-corrosive materials. I used these to secure a copper lamppost - nothing else would last as long, look as good, and not react with the copper in the outdoor environment.
What you see is what you expect.
The bolts are going into already existing holesbelow the waterlin and must be an exact fit. Bolts obtained from other sources were not.