Round Head Silicon Bronze Machine Screw
Bronze Machine Screw / Bolt
Round Head Bronze Machine Screw
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Round Head Silicon Bronze Machine Screws / Bolts

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Solid 651 Silicon Bronze Round Head Machine Screws with a Slotted Drive

These machine bolts have a round head. You can also find bronze flat head machine bolts or oval head machine bolts on our store.

Our Silicon Bronze Machine Screws, often referred to as Machine Bolts, are the highest quality available, made of a solid 651 Silicon Bronze Alloy, and manufactured to meet ASME B18.6.3 standards. These fasteners are often used as bolts with nuts on the end or can be driven in to tapped holes. All of the Machine Screws we carry come with a slotted drive.

4" lengths and less are fully threaded with rolled threads, while lengths over 4" are partially threaded with full body shanks and cut threads.

We carry one of the largest selections of solid bronze machine screws in the USA. Use them in your boat building application to attach bronze hardware, in your electrical application since bronze is such a good conductor, or in any application where the highly anti-corrosive nature combined with the beauty of bronze is fitting.

We do things a bit differently here at Fair Wind Fasteners. Rather than force you to purchase an entire box of fasteners you can put the exact quantity you need in the quantity box above and we'll box and send the perfect amount. Quantity discounts will be automatically applied.

Customer Reviews

Based on 30 reviews
Robert Johnson
Hard-to-find fasteners at a good price

Fair Wind Fasteners had the exact bronze screws and nuts to repair a 55-year-old Blakes seacock. They were an exact match and the cost was 75 percent less than the parts from the manufacturer. The parts were quickly mailed in plastic-free, fully recyclable packaging, which was an extra bonus. I'll definitely choose Fair Wind in the future when I need specialized marine-grade fasteners.


Top Notch service , quality products and timely delivery . THANK YOU

Ordered an assortment of bronze fasteners

I had a number of small projects for my Beetle cat which required a variety of bronze fasteners. Unfortunately, other vendors don't carry bronze, or they don't have the right size, or they sell them only in bulk. I had a little trouble with the Fair Wind Fasteners website, but Rob quickly helped me complete my order which came quickly and neatly packed, helping me complete my projects before a week-long cruise in the Everglades.

Jonathan Quebbeman

Round Head Silicon Bronze Machine Screws / Bolts

Dale in Virginia
Small order

I only needed a few bronze machine screws, washers, and nuts. Got them fast at a fair price. Very good quality from what I see from examination and use so far.