For over [Number] years, Latham Steel in Hamilton has been the trusted local source for industrial strength. We understand that the integrity of your projects hinges on the quality of their smallest components, which is why we specialize in supplying premium Alloy Steel Gr B6 fasteners. Our commitment isn’t just to inventory; it’s to providing robust, reliable solutions that meet the demanding challenges faced by Kiwi engineers and fabricators, ensuring every bolt and nut performs under pressure.
The exceptional strength of Alloy Steel Gr B6 fasteners comes from a specific blend of chromium and molybdenum. This composition allows them to achieve remarkable mechanical properties, including a high tensile strength and excellent resistance to wear and abrasion. They are typically heat-treated to further enhance these qualities, resulting in components that offer superior load-bearing capacity and durability, making them far tougher than standard carbon steel options.
Specification :Â ASTM A193 / ASME SA193
Dimension :Â DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range :Â M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length :Â 3 mm to 200 mm
| Alloy Steel B6 | C | Mn | Si | P | S | Co | Cr |
| 0.15 max | 1.00 max | 1.00 max | 0.040 | 0.030 | – | 11.50-13.50 |
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
| 666 (≥) | 997 (≥) | 42 | 14 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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Hexagon Bolts / Set Screws |
Stud Bolts |
Hexagon Nuts |
Socket Capscrews |
|---|---|---|---|
|
DIN 931 |
BS4882 |
DIN 934 |
DIN 912 |
|
DIN 933 |
DIN 976 |
BS 1768 |
DIN 6912 |
|
BS 1768 |
BS 1769 |
DIN 7984 |
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|
UNI 5731 |
BS 1083 |
ANSI B18.3 |
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|
UNI 5739 |
BS 3692 |
ISO 4762 |
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|
ISO 4014 |
ISO 4032 |
UNI 5931 |
|
|
ISO 4017 |
ISO 4033 |
BS 2470 |
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|
BS 1769 |
ANSI B18.2.2 |
BS 4168 |
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|
BS 3692 |
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ANSI B18.2.1 |
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Socket & Slotted Set Screws |
Socket & Slotted Countersunk Screws |
Studs |
Washers |
|
DIN 913 |
DIN 963 |
DIN 938 |
DIN 125 |
|
DIN 914 |
DIN 7991 |
DIN 939 |
DIN 9021 |
|
DIN 915 |
BS 4168 |
DIN 2510 |
BS 4320 |
|
DIN 916 |
BS 1981 |
BS 4439 |
BS 3410 |
|
DIN 551 |
BS 483 |
BS 2693 |
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|
DIN 553 |
BS 2470 |
Spring Washers |
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|
DIN 438 |
DIN 127 |
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|
BS 4168 |
BS 4464 |
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|
BS 1802 |
You’ll typically find these heavy-duty fasteners in applications where failure is not an option. They are essential in high-pressure piping systems, critical structural connections in mining and quarrying equipment, and within the demanding environments of oil and gas extraction. Their ability to withstand intense stress, vibration, and impact makes them the preferred choice for securing major components in heavy machinery, ensuring safety and reliability in some of New Zealand’s most vital and challenging industries.
Latham Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hamilton, New Zealand.
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