Table of Content
| Aspect | Saltwater | Freshwater |
|---|---|---|
| Corrosiveness | Highly Corrosive. | Less Corrosive. |
| Coatings | Zinc Or Advanced Coatings. | Budget-Friendly Coatings. |
| Maintenance | Regular Maintenance. | Less Maintenance. |
| Material Needs | Requires 316 SS, Silicon Bronze, etc. | Standard Materials. |
| Damage Risk | High Risk. | Minimal. |


| Feature | Regular Fasteners | Marine Fasteners |
|---|---|---|
| Material | Standard steel | Stainless steel 316, titanium |
| Corrosion Resistance | Rust-prone | Saltwater-resistant |
| Durability | Shorter lifespan | Long-lasting |
| Coatings | Basic or none | Corrosion-resistant coatings |
| Applications | General use | Marine, boats, docks |

| Grade | Material | Applications |
|---|---|---|
| 304 Stainless Steel | Stainless Steel | Marine fixtures & Equipment |
| 316 Stainless Steel | Stainless Steel | Boat construction, marine hardware |
| Silicon Bronze | Copper-Silicon | Boat construction |
| Monel | Nickel-Copper | Marine pumps, valves |
| Titanium | Titanium | Submerged applications |


| Tips | Description |
|---|---|
| Pre-Drill | Prevent material damage. |
| Correct Length | Choose the right length . |
| Use Torque Wrench | Avoid tightening fasteners. |
| Avoid Mixing Metals | Use same metal fasteners. |
| Use Sealant | prevent water and corrosion. |
| Tighten Gradually | Proper tension. |
| Apply Coatings | longevity. |

| Coating/Material |
|---|
| Ceramic Finishes |
| Galvanizing (Zinc Coating) |
| Stainless Steel Alloys (316) |

| Material | Best/Worst |
|---|---|
| Galvanized Steel | Worst |
| Plated Steel | Worst |
| Carbon Steel | Worst |
| Copper | Worst |
| Stainless Steel | Best |
| Titanium | Best |
| Bronze | Best |
| Aluminum | Best |
| Material | Equivalent Grades |
|---|---|
| Stainless Steel | AISI 316, EN 1.4401, UNS S31600 |
| Galvanized Steel | ASTM A123, ASTM A153, |
| Titanium | Grade 5, Grade 2 |
| Aluminum | 5052, 6061, 6082 |
| Carbon Steel | ASTM A36,ASTM A307, SAE 1018 |

| Property | 304 Stainless Steel | 316 Stainless Steel |
|---|---|---|
| Composition | Less molybdenum, Higher Chromium | Molybdenum gives better corrosion resistance |
| Corrosion Resistance | Good | Best |
| Price | Affordable | Expensive |
| Magnetic Properties | Non-magnetic | Slightly magnetic |
| Strength | High strength | Stronger |
| Durability | Less durable | More durable |
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