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 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 33 reviews
Thomas Trulove
Fasteners look great

As I am still a few months away from using them I can only attest to their appearance and feel as I test their assembly. The test assembly went well the nuts fit without exter effort. Their appearance is just what I was looking for thee project. They were delivered when promised. Very satisfied.

Steven Baker
Hard to find bronze bolts

Great product, quick delivery

Kelvin Olson
Spot-on, Speedy, and Spiffy

The typical hardware/home-maint store had the copper this and the bronze that, but they expected me to connect them together with threaded steel rod. STEEL. Like galvanic corrosion isn't a concern?! So off to the web I went, searching for Copper or Brass or Bronze 3/8 bolts and nuts.

Fair Wind came through. Had what I needed, perfect fit. Shipped quickly. And packaged nicely so as to protect the bolt threads from shipper abuse. That was a lovely, unexpected touch of care and professionalism.

Absolutely would not hesitate to deal with Fair Wind Fasteners again.

Lionel Prevost
Flawless ordering process

It’s great when you call and sometimes actually knows what you’re talking about. These guys know what they’re doing and are extremely knowledgeable.

Good selection and service

It's great to be able to buy exactly what you need instead of having to buy packages of more than you want. And great to be able to find less-usual fasteners that are not often carried by the large marine stores. The customer service felt personal.