• Silicon Bronze Flat Head Machine Screw/Bolt
  • Bronze CSK Machine Screws
  • Silicon Bronze Machine Screws
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Fair Wind Fasteners

Flat Head Silicon Bronze Machine Screws / Bolts

Flat Head Silicon Bronze Machine Screws / Bolts

$0.30
$0.30
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Solid 651 Silicon Bronze Flat Head Countersunk Machine Screws with a Slotted Drive

These machine bolts have a flat, countersunk (CSK) head. You can also find bronze oval head machine bolts or round head machine bolts at 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. These flat headed machine bolts have a countersunk (CSK) head, with a standard 82 degree angle on the countersink.

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.

Head Diameter
Nominal Size Max. Min.
#2
#4
#5
#6
#7
#8
#9
#10
#12
1/4"
5/16"
3/8"
1/2"		 0.172"
0.225"
0.252"
0.279"
0.305"
0.332"
0.358"
0.385"
0.438"
0.507"
0.635"
0.762"
0.875"		 0.147"
0.195"
0.220"
0.244"
0.268"
0.292"
0.316"
0.340"
0.389"
0.452"
0.568"
0.685"
0.775"
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Customer Reviews

Based on 118 reviews
98%
(116)
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J
Joseph Cast (The Dalles, US)
6-24 silicon bronze screws

I wanted to fasten my blocks with 6-24 screws and had to remove the head after insertion. These worked out great. The hard wood bubinga and maple required that the hole was drilled and tapped, and then gently screwed in to ensure the silicon bronze screws did not have any issues. I will reuse the heads for the keepers on the axle (not yet completed).

User picture
M
Matthew Dooley (West Yarmouth, US)
Fantastic

Super fast shipping and everything is always in stock

j
jared sutton (St Louis, US)
JUST RIGHT

worked out perfect will not buy any bolts that require them to be this finish ANYWHERE ELSE.

A
Alex Comb (Knife River, US)
Bronze machine screws

I ordered an odd size bronze machine screw that I couldn’t find elsewhere. Service was prompt and it was just what I needed.

W
Walter Baron (Cambridge, US)
Great Company!

Great service- I have gotten recent orders in a day or 2 after ordering. Thanks.

M
Mark Chamberland (Apple Valley, US)

Great to work with!

I
Ignacio Vivancos (Lakeway, US)
Excellent service

Thanks so much

T
Thomas Croft
Perfect

What I wanted, what I expected, what I got.

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