| Size | 12 mm |
|---|---|
| Type | Bolt, Nut, Screw, Washer, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 10 mm |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Structural Bolts
Delta Fitt Inc is a trusted Structural Bolts Manufacturers that produce the best-quality bolts with high strength and reliability in construction operations that demand high steel. They are bolts of high-quality, being produced at high standards of industries, to guarantee excellent operation in large structures like bridges, buildings, and steel structures. Structural bolts are made of very strong materials such as alloy steel and carbon steel and they possess good load-bearing capabilities and durability in the long term. They come in different grades, coating and sizes to meet different engineering needs and provide firm, stable and vibration free connections.
Common Grades & Materials – Structural Bolts
| Standard | Grade / Class | Material Type | Heat Treatment | Min. Tensile Strength | Yield Strength | Typical Applications |
|---|---|---|---|---|---|---|
| ASTM F3125 | A325 Type 1 | Medium carbon steel | Quenched & tempered | ~830 MPa | ~660 MPa | Building frames, steel connections |
| ASTM F3125 | A325 Type 3 | Weathering steel | Quenched & tempered | ~830 MPa | ~660 MPa | Outdoor structures, bridges |
| ASTM F3125 | A490 Type 1 | Alloy steel | Quenched & tempered | ~1040 MPa | ~940 MPa | Heavy-duty structural joints |
| ASTM F3125 | A490 Type 3 | Weathering alloy steel | Quenched & tempered | ~1040 MPa | ~940 MPa | Bridges, towers (corrosion exposed) |
| ASTM A307 | Grade A | Low carbon steel | As rolled / normalized | ~415 MPa | ~240 MPa | Secondary structural connections |
| ASTM A307 | Grade B | Carbon steel | As rolled / normalized | ~415 MPa | ~240 MPa | Anchor bolts, flanges |
| ASTM A449 | A449 | Medium carbon alloy steel | Quenched & tempered | ~830 MPa | ~660 MPa | Non-structural heavy joints |
| ASTM A354 | Grade BC | Alloy steel | Quenched & tempered | ~1040 MPa | ~860 MPa | High-load construction |
| ASTM A354 | Grade BD | Alloy steel | Quenched & tempered | ~1200 MPa | ~1080 MPa | Extreme load applications |
| EN 14399 | Class 8.8 | Carbon steel | Quenched & tempered | ~800 MPa | ~640 MPa | Structural steel joints (EU) |
| EN 14399 | Class 10.9 | Alloy steel | Quenched & tempered | ~1000 MPa | ~940 MPa | Bridges, high-load joints |
| EN 14399 | Class 10.9 HR | Preloaded system | Controlled tightening | ~1000 MPa | ~940 MPa | Slip-critical connections |
| EN 14399 | Class 10.9 HV | Preloaded system | Controlled tightening | ~1000 MPa | ~940 MPa | Structural assemblies |
| ISO 898-1 | Class 8.8 | Carbon steel | Quenched & tempered | ~800 MPa | ~640 MPa | General structural use |
| ISO 898-1 | Class 10.9 | Alloy steel | Quenched & tempered | ~1000 MPa | ~900 MPa | Heavy steel construction |
| ISO 898-1 | Class 12.9 | Alloy steel | Quenched & tempered | ~1200 MPa | ~1080 MPa | Special structural machinery |
| ASTM A193 | B7 | Cr-Mo alloy steel | Quenched & tempered | ~860 MPa | ~720 MPa | Structural flanges, power plants |
| ASTM A193 | B16 | Cr-Mo-V alloy steel | Quenched & tempered | ~860 MPa | ~690 MPa | High-temp structural joints |
| ASTM A588 | A588 | High-strength low-alloy | Normalized | ~690 MPa | ~550 MPa | Atmospheric corrosion resistance |
| ASTM A320 | L7 | Alloy steel | Quenched & tempered | ~860 MPa | ~720 MPa | Cold-region structures |
| ASTM A453 | Grade 660 | Precipitation-hardening SS | Solution treated & aged | ~1000 MPa | ~720 MPa | High-temp structural service |
Structural bolts are commonly utilized in B2B market because they are very strong and can resist extreme stress situations occurring during the dissimilar construction projects. These bolts are necessary to ensure the steel parts hold together, structural integrity, and safety in a wide range of industrial engineering. The structural bolts with their high tensile strength, corrosion resistance and threading accuracy provide reliable performance to engineering companies, contractors and infrastructure developers. They are also reliable and, as such, a very popular choice in big-scale commercial and industrial applications. We supply Blind Bolts engineered for secure fastening where access is limited to only one side of the material.
Type of Sub-products
Carbon Steel Structural Bolts Carbon Steel Structural Bolts
Ideal for high load structural connections due to their excellent strength and cost efficiency.
Heavy Hex Structural Bolts Heavy Hex Structural Bolts
Used in steel to steel connections with wider bearing surfaces and enhanced tightening capacity.