Hex Lag Bolt > Silicon Bronze > 1/4", 5/16", 3/8", 1/2", or 5/8" Sizes > Cap Screw
When only the best will do, use our marine grade silicon bronze for all your fasteners and mounting hardware.
Product Features:
Our Premium Silicon Bronze Hex Lag Bolts, also known as hex head cap screws contain about 3% Silicon, for maximum corrosion resistance and superior durability.
Silicon bronze is a superior material for underwater fastenings.
Please note that depending on the size of the fastener, and the particular batch, these cap screws may, or may not, have non-threaded shoulders.
If the presence of a shoulder is important for your application, please let us know and we will get them for you.
Specifications & Pricing:
Bolt DIA Size (A)
Shaft Length (B)
Price Per Bolt
1/4"
1/2"
$.70
1/4"
3/4"
$.81
1/4"
1"
$.83
1/4"
1 1/4"
$.88
1/4"
1 1/2"
$1.08
1/4"
1 3/4"
$1.09
1/4"
2"
$1.31
1/4"
2 1/2"
$1.46
1/4"
3"
$1.68
1/4"
3 1/2"
$2.69
1/4"
4"
$2.85
5/16"
3/4"
$.93
5/16"
1"
$1.05
5/16"
1 1/4"
$1.17
5/16"
1 1/2"
$1.29
5/16"
1 3/4"
$1.76
5/16"
2"
$2.14
5/16"
2 1/2"
$2.59
5/16"
3"
$2.76
5/16"
3 1/2"
$4.14
5/16"
4"
$4.77
5/16"
5"
$6.99
3/8"
3/4"
$1.74
3/8"
1"
$1.82
3/8"
1 1/4"
$1.97
3/8"
1 1/2"
$2.16
3/8"
1 3/4"
$2.32
3/8"
2"
$2.56
3/8"
2 1/2"
$2.63
3/8"
3"
$2.76
3/8"
3 1/2"
$4.75
3/8"
4"
$5.18
3/8"
5"
$8.06
3/8"
6"
$10.16
1/2"
1"
$4.23
1/2"
1 1/4"
$4.48
1/2"
1 1/2"
$4.71
1/2"
2"
$5.27
1/2"
2 1/4"
$5.39
1/2"
2 1/2"
$5.65
1/2"
3"
$6.37
1/2"
3 1/2"
$7.32
1/2"
4"
$8.33
1/2"
5"
$13.30
1/2"
6"
$13.99
1/2"
8"
$22.42
5/8"
2"
$6.88
5/8"
2 1/2"
$8.09
5/8"
3"
$9.34
5/8"
3 3/4"
$19.09
5/8"
4"
$20.99
5/8"
5"
$21.99
Please choose the Bolt(s) you need from the drop down menu above the product description.
Size: (A) 1/4"-20 x 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-264-2257 - Material: Marine Grade Silicon Bronze - Price: $.70 each
Size: (A) 1/4"-20 x 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-264-2258 - Material: Marine Grade Silicon Bronze - Price: $.81 each
Size: (A) 1/4"-20 x 1" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-264-2259 - Material: Marine Grade Silicon Bronze - Price: $.83 each
Size: (A) 1/4"-20 x 1 1/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-264-2260 - Material: Marine Grade Silicon Bronze - Price: $.88 each
Size: (A) 1/4"-20 x 1 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-264-2261 - Material: Marine Grade Silicon Bronze - Price: $1.08 each
Size: (A) 1/4"-20 x 1 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-264-2262 - Material: Marine Grade Silicon Bronze - Price: $1.09 each
Size: (A) 1/4"-20 x 2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2263 - Material: Marine Grade Silicon Bronze - Price: $1.31 each
Size: (A) 1/4"-20 x 2 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2264 - Material: Marine Grade Silicon Bronze - Price: $1.46 each
Size: (A) 1/4"-20 x 3" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2265 - Material: Marine Grade Silicon Bronze - Price: $1.68 each
Size: (A) 1/4"-20 x 3 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2266 - Material: Marine Grade Silicon Bronze - Price: $2.69 each
Size: (A) 1/4"-20 x 4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2267 - Material: Marine Grade Silicon Bronze - Price: $2.85 each
Size: (A) 5/16"-18 x 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2270 - Material: Marine Grade Silicon Bronze - Price: $.93 each
Size: (A) 5/16"-18 x 1" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2271 - Material: Marine Grade Silicon Bronze - Price: $1.05 each
Size: (A) 5/16"-18 x 1 1/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2272 - Material: Marine Grade Silicon Bronze - Price: $1.17 each
Size: (A) 5/16"-18 x 1 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2273 - Material: Marine Grade Silicon Bronze - Price: $1.29 each
Size: (A) 5/16"-18 x 1 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2274 - Material: Marine Grade Silicon Bronze - Price: $1.76 each
Size: (A) 5/16"-18 x 2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2275 - Material: Marine Grade Silicon Bronze - Price: $2.14 each
Size: (A) 5/16"-18 x 2 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2276 - Material: Marine Grade Silicon Bronze - Price: $2.59 each
Size: (A) 5/16"-18 x 3" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2277 - Material: Marine Grade Silicon Bronze - Price: $2.76 each
Size: (A) 5/16"-18 x 3 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2278 - Material: Marine Grade Silicon Bronze - Price: $4.14 each
Size: (A) 5/16"-18 x 4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2279 - Material: Marine Grade Silicon Bronze - Price: $4.77 each
Size: (A) 5/16"-18 x 5" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2281 - Material: Marine Grade Silicon Bronze - Price: $6.99 each
Size: (A) 3/8"-16 x 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2282 - Material: Marine Grade Silicon Bronze - Price: $1.74 each
Size: (A) 3/8"-16 x 1" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2284 - Material: Marine Grade Silicon Bronze - Price: $1.82 each
Size: (A) 3/8"-16 x 1 1/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2285 - Material: Marine Grade Silicon Bronze - Price: $1.97 each
Size: (A) 3/8"-16 x 1 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2286 - Material: Marine Grade Silicon Bronze - Price: $2.16 each
Size: (A) 3/8"-16 x 1 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2287 - Material: Marine Grade Silicon Bronze - Price: $2.32 each
Size: (A) 3/8"-16 x 2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2288 - Material: Marine Grade Silicon Bronze - Price: $2.56 each
Size: (A) 3/8"-16 x 2 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2289 - Material: Marine Grade Silicon Bronze - Price: $2.63 each
Size: (A) 3/8"-16 x 3" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2290 - Material: Marine Grade Silicon Bronze - Price: $2.76 each
Size: (A) 3/8"-16 x 3 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2291 - Material: Marine Grade Silicon Bronze - Price: $4.75 each
Size: (A) 3/8"-16 x 4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2292 - Material: Marine Grade Silicon Bronze - Price: $5.18 each
Size: (A) 3/8"-16 x 5" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2767 - Material: Marine Grade Silicon Bronze - Price: $8.06 each
Size: (A) 3/8"-16 x 6" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2293 - Material: Marine Grade Silicon Bronze - Price: $10.16 each
Size: (A) 1/2"-13 x 1" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2296 - Material: Marine Grade Silicon Bronze - Price: $4.23 each
Size: (A) 1/2"-13 x 1 1/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-6206 - Material: Marine Grade Silicon Bronze - Price: $4.48 each
Size: (A) 1/2"-13 x 1 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2297 - Material: Marine Grade Silicon Bronze - Price: $4.71 each
Size: (A) 1/2"-13 x 2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2298 - Material: Marine Grade Silicon Bronze - Price: $5.27 each
Size: (A) 1/2"-13 x 2 1/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-6751 - Material: Marine Grade Silicon Bronze - Price: $5.39 each
Size: (A) 1/2"-13 x 2 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2299 - Material: Marine Grade Silicon Bronze - Price: $5.65 each
Size: (A) 1/2"-13 x 3" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2300 - Material: Marine Grade Silicon Bronze - Price: $6.37 each
Size: (A) 1/2"-13 x 3 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2301 - Material: Marine Grade Silicon Bronze - Price: $7.32 each
Size: (A) 1/2"-13 x 4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2302 - Material: Marine Grade Silicon Bronze - Price: $8.33 each
Size: (A) 1/2"-13 x 5" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2303 - Material: Marine Grade Silicon Bronze - Price: $13.30 each
Size: (A) 1/2"-13 x 6" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2304 - Material: Marine Grade Silicon Bronze - Price: $13.99 each
Size: (A) 1/2"-13 x 8" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-5459 - Material: Marine Grade Silicon Bronze - Price: $22.42 each
Size: (A) 5/8"-11 x 2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2899 - Material: Marine Grade Silicon Bronze - Price: $6.88 each
Size: (A) 5/8"-11 x 2 1/2" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-3146 - Material: Marine Grade Silicon Bronze - Price: $8.09 each
Size: (A) 5/8"-11 x 3" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2305 - Material: Marine Grade Silicon Bronze - Price: $9.34 each
Size: (A) 5/8"-11 x 3 3/4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-8860 - Material: Marine Grade Silicon Bronze - Price: $19.09 each
Size: (A) 5/8"-11 x 4" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-2306 - Material: Marine Grade Silicon Bronze - Price: $20.99 each
Size: (A) 5/8"-11 x 5" (B) - Fastener Type: Silicon Bronze Hex Bolt - Model # FA-267-7132 - Material: Marine Grade Silicon Bronze - Price: $21.99 each
Combine this purchase with other items in our store for discounted shipping.
Bronze is a favored material to use for traditional boat fittings because it takes casting, machining, and polishing very well, is relatively strong and incredibly resistant to salt water.
While bronze is often more expensive initially than other marine grade materials, this expense is easily recovered through the high strength and long life bronze provides.
Sold individually.
Available in several sizes.
Hex bolt sizes generally have three components - shank diameter, threads per inch, and length.
For example, a 1/4"-20 x 2" bolt measures 1/4" in diameter with 20 threads per inch and a 2" shank.
The length on hex bolts is measured from the underside of the head to the end of the fastener.
Most marine hardware can be divided into two distinct groups these days.
Cheap junk made with little, if any, thought to the impact its production has on the environment or the workers involved - or high quality gear made from materials designed to last, by companies that care.
We prefer to carry the latter.
Plastic and nylon parts are durable for a while and they satisfy price sensitive shoppers. Their production, however, creates numerous toxins, and eventually enough sunshine or stress will cause them to break.
Chrome, nickel, and zinc plating can protect metal surfaces for years, but their initial production, especially in third-world countries can cause devastating harm.
Painted parts are effective for a while, but paint production is usually nasty, and as it chips and goes over the side, paint carries its own poisons along.
At greenboatstuff.com we choose to carry aluminum, brass, bronze, stainless steel, and occasionally wood hardware.
In an imperfect world we know these choices are not entirely without their faults.
In our opinion, however, they satisfy our criteria for high quality, long lasting products that do the job well while inflicting minimal, if any, harm.
Another important green aspect to our hardware offerings is our lack of a minimum order policy.
Unlike most hardware suppliers that force you to purchase in bulk, at greenboatstuff we try to avoid such restrictive policies.
After all, if a customer only needs a certain quantity of an item, why force them to pay for something that will sit on a shelf for years or be discarded?
Sure, this might sound like a little thing, but if we can discourage waste, especially of products like hardware that are made almost exclusively from natural resources, we believe it is both good business and good for the Planet.
Product Reviews for Silicon Bronze Hex Lag Bolt ( 1/4" to 5/8" Sizes )
Combine this purchase with other items in our store for discounted shipping.
Bronze is a favored material to use for traditional boat fittings because it takes casting, machining, and polishing very well, is relatively strong and incredibly resistant to salt water.
While bronze is often more expensive initially than other marine grade materials, this expense is easily recovered through the high strength and long life bronze provides.
Combine this purchase with other items in our store for discounted shipping.
Bronze is a favored material to use for traditional boat fittings because it takes casting, machining, and polishing very well, is relatively strong and incredibly resistant to salt water.
While bronze is often more expensive initially than other marine grade materials, this expense is easily recovered through the high strength and long life bronze provides.
Combine this purchase with other items in our store for discounted shipping.
Bronze is a favored material to use for traditional boat fittings because it takes casting, machining, and polishing very well, is relatively strong and incredibly resistant to salt water.
While bronze is often more expensive initially than other marine grade materials, this expense is easily recovered through the high strength and long life bronze provides.
I am quite impressed with GreenBoatStuff.com! I ordered a small-sized hoodie from them once before, and the whole transaction went through smoothly. This time was no exception. I ordered a medium-sized hoodie, a baseball cap, a belt, and a lunch bag, and received them all in about 7 business days, when it was estimated to arrive. I was also quite astonished at how all those goods were put into one small packaging box! That shows great use of resources and efficiency, in my opinion. It's also wonderful that the products they sell are all environmentally-friendly, produced with social responsibility in mind, and very affordable. One percent of their income is even donated to environmental causes! In conclusion, GreenBoatStuff.com is a wonderful business, and I would gladly support them again.