Structural Bolts

Structural Bolts
$0.25 - $0.55

Minimum Order : 50 piece

Customization as per requirements

Specification Details
Size 12 mm
TypeBolt, Nut, Screw, Washer, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners
StandardDin, Iso, Jis, Gb, Is, Bs, Astm
Length10 mm
MaterialStainless 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

StandardGrade / ClassMaterial TypeHeat TreatmentMin. Tensile StrengthYield StrengthTypical Applications
ASTM F3125A325 Type 1Medium carbon steelQuenched & tempered~830 MPa~660 MPaBuilding frames, steel connections
ASTM F3125A325 Type 3Weathering steelQuenched & tempered~830 MPa~660 MPaOutdoor structures, bridges
ASTM F3125A490 Type 1Alloy steelQuenched & tempered~1040 MPa~940 MPaHeavy-duty structural joints
ASTM F3125A490 Type 3Weathering alloy steelQuenched & tempered~1040 MPa~940 MPaBridges, towers (corrosion exposed)
ASTM A307Grade ALow carbon steelAs rolled / normalized~415 MPa~240 MPaSecondary structural connections
ASTM A307Grade BCarbon steelAs rolled / normalized~415 MPa~240 MPaAnchor bolts, flanges
ASTM A449A449Medium carbon alloy steelQuenched & tempered~830 MPa~660 MPaNon-structural heavy joints
ASTM A354Grade BCAlloy steelQuenched & tempered~1040 MPa~860 MPaHigh-load construction
ASTM A354Grade BDAlloy steelQuenched & tempered~1200 MPa~1080 MPaExtreme load applications
EN 14399Class 8.8Carbon steelQuenched & tempered~800 MPa~640 MPaStructural steel joints (EU)
EN 14399Class 10.9Alloy steelQuenched & tempered~1000 MPa~940 MPaBridges, high-load joints
EN 14399Class 10.9 HRPreloaded systemControlled tightening~1000 MPa~940 MPaSlip-critical connections
EN 14399Class 10.9 HVPreloaded systemControlled tightening~1000 MPa~940 MPaStructural assemblies
ISO 898-1Class 8.8Carbon steelQuenched & tempered~800 MPa~640 MPaGeneral structural use
ISO 898-1Class 10.9Alloy steelQuenched & tempered~1000 MPa~900 MPaHeavy steel construction
ISO 898-1Class 12.9Alloy steelQuenched & tempered~1200 MPa~1080 MPaSpecial structural machinery
ASTM A193B7Cr-Mo alloy steelQuenched & tempered~860 MPa~720 MPaStructural flanges, power plants
ASTM A193B16Cr-Mo-V alloy steelQuenched & tempered~860 MPa~690 MPaHigh-temp structural joints
ASTM A588A588High-strength low-alloyNormalized~690 MPa~550 MPaAtmospheric corrosion resistance
ASTM A320L7Alloy steelQuenched & tempered~860 MPa~720 MPaCold-region structures
ASTM A453Grade 660Precipitation-hardening SSSolution treated & aged~1000 MPa~720 MPaHigh-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

    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

    Heavy Hex Structural Bolts

    Used in steel to steel connections with wider bearing surfaces and enhanced tightening capacity.