Bronze Hex Bolts
651 Silicon Bronze Hex Cap Screw
Silicon Bronze Head Head Bolts
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Silicon Bronze Hex Cap Screws / Tap Bolts

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Our solid 651 silicon bronze hex cap screws, often referred to as hex head bolts or tap bolts, are a solid bronze alloy, specifically CS65100 silicon bronze. All of our hex cap screws are fully threaded with a standard imperial coarse thread, and meet SAE specifications as well as ASME B18.2.1 and ASTM F468 with grade markings on the heads.

Non-magnetic, electrically conductive, high strength, and extremely corrosion resistant properties make these solid bronze hex bolts excellent for a variety of uses including:

  • Use on a boat where corrosion resistance from seawater is paramount
  • Use in electrical generation or in the power and energy industry for their highly conductive, high strength, and corrosion resistance
  • In general construction, where proximity to salt spray or other corrosive environments is of concern
  • Use in water treatment plants, where they will resist corrosion from chlorine or other treatment chemicals
  • Use in electrical grounding
  • Use on dams, dikes, and levies where they won't corrode and are easily removed years down the line.

Put the exact quantity you'd like to order in the "Quantity" box above and your quantity discount will be automatically applied during checkout.

Don't forget to add your bronze nuts and washers!

Customer Reviews

Based on 51 reviews
Right the first time

The fasteners were exactly what we were looking for. They were provided in a timely manner. We will certainly be using Fair Wind again.

Finest kind

Great Company

Silicone Bronze Fasteners, 5/15”-18 x 3/4”

Great fasteners and great price! I’m not using these for their intended purpose (marine applications) but machining the head down to a round shape and drilling and tapping the center - exactly what I needed for a product that I sell.

Steve Kraft
Great Product

If you’re looking for the best marine hardware look no further. I won’t buy my hardware anywhere else.

Aaron Ragsdale
Bolts & Fasteners at a great price

shipping was fast, big selection of marine grade hardware thats hard to find sold by the piece! A great find for me