Jade Alloys is a manufacturer and exporter of bolts, nuts, studs and fasteners alongside round bars, sheets & plates, pipes & tubes, RTJ gaskets and header plugs in carbon steel, alloy steel, stainless steel, duplex and high-nickel alloys. This page indexes every bolt specification and fastener specification we manufacture and supply against, organized by the issuing body: ASTM, ASME/SAE, ISO and DIN. Use it to confirm chemistry, mechanical property, and dimensional requirements before you order, or jump straight to the individual specification page for full grade tables and equivalent-standard cross-references.
Looking for a specific standard’s dimensional data instead of material chemistry? See our companion Standard Information hub for DIN, ISO, ASME, IS, and BS dimensional standards covering bolt head sizes, thread pitch, and nut/washer geometry.
ASTM Bolt & Stud Specifications
The American Society for Testing and Materials (ASTM) publishes the most widely referenced bolt specifications for oil & gas, petrochemical, power generation, and general industrial bolting. Jade Alloys manufactures and supplies bolts, studs, and threaded rod to the following ASTM specifications:
| Standard | Scope / Description |
|---|---|
| ASTM A193 | Alloy and stainless steel bolting material for high-temperature or high-pressure service. Covers grades B7, B8, B8M, B8C, B8T, and B16. |
| ASTM A194 | Carbon and alloy steel nuts for bolts used in high-pressure and high-temperature service. Pairs with A193. |
| ASTM A307 | Carbon steel bolts and studs, 60,000 psi minimum tensile strength, Grades A and B. |
| ASTM A320 | Alloy and stainless steel bolting material for low-temperature service. Covers grades L7, L7M, and B8 class 2. |
| ASTM A325 | Structural bolts, steel, heat-treated, 120/105 ksi minimum tensile strength, Types 1, 2, and 3. |
| ASTM A354 | Quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners, Grades BC and BD. |
| ASTM A453 | Stainless and alloy-steel turbine-type bolting for high-temperature service, Grades 651, 660, 662, 665, and 668. |
| ASTM A490 | Structural bolts, alloy steel, heat-treated, 150 ksi minimum tensile strength, the high-strength counterpart to A325. |
| ASTM F593 | Stainless steel bolts, hex cap screws, and studs in Alloy Groups 1, 2, and 3. |
| ASTM F1554 | Anchor bolts designed to anchor structural supports to concrete foundations, Grades 36, 55, and 105. |
| ASTM F3125 | Unified structural bolt specification replacing A325, A325M, A490, A490M, F1852, and F2280. |
ASTM Nut Specifications
| Standard | Scope / Description |
|---|---|
| ASTM A194 | Carbon and alloy steel nuts for bolts used in high-pressure and high-temperature service. |
| ASTM A563 | Standard specification for carbon and alloy steel nuts, Grades O, A, B, C, D, DH. |
| ASTM F594 | Stainless steel nuts, the standard companion to F593 bolts. |
| ASTM F467 | Nonferrous nuts for general use in copper, brass, bronze, and nickel-copper alloys. |
ASTM Washer Specifications
| Standard | Scope / Description |
|---|---|
| ASTM F436 | Hardened steel washers, inch and metric dimensions, for use with structural bolts. |
| ASTM F844 | Washers, steel, plain, unhardened, for general use. |
| ASTM F959 | Compressible-washer-type direct tension indicators (DTIs), 1/2″ to 1-1/2″ diameters. |
| ASTM F2437 | Compressible-washer-type direct tension indicators (DTIs), 1/4″ to 2-1/2″ diameters. |
Round Bar, Plate & Forging Specifications
Beyond fasteners, Jade Alloys stocks and exports round bars, sheets, plates, and forgings in carbon steel, alloy steel, stainless steel, duplex/super duplex, and nickel alloys (Inconel, Incoloy, Hastelloy, Monel). Each alloy is governed by its own ASTM material specification:
Round Bar Specifications
| Standard | Scope / Description |
|---|---|
| ASTM A276 | Stainless steel bars and shapes, hot-finished or cold-finished. Covers 304/304L, 316/316L, 321, 347. |
| ASTM A479 | Stainless steel bars for boilers and pressure vessels. |
| ASTM B160 | Nickel rod and bar (Nickel 200/201). |
| ASTM B164 | Nickel-copper alloy rod, bar, and wire, Monel 400 / K500. |
| ASTM B166 | Ni-Cr-Fe / Ni-Cr-Co-Mo rod and bar, Inconel 600 / 601. |
| ASTM B408 | Nickel-iron-chromium alloy rod and bar, Incoloy 800/800H/800HT. |
| ASTM B425 | Ni-Fe-Cr-Mo-Cu rod and bar, Incoloy 825. |
| ASTM B446 | Nickel alloy rod and bar, Inconel 625. |
| ASTM B473 | Nickel alloy bar and wire, Alloy 20. |
| ASTM B574 | Low-carbon nickel alloy rod, Hastelloy C276 / C22. |
| ASTM B637 | Precipitation-hardening nickel alloy bar, Alloy 718 / 925. |
| ASTM B865 | Precipitation-hardening Monel bar and forgings, Monel K500. |
Sheet & Plate Specifications
| Standard | Scope / Description |
|---|---|
| ASTM A240 | Stainless steel plate, sheet, and strip for pressure vessels, 304/304L, 316/316L, 321, 347, 904L. |
| ASTM B127 | Nickel-copper plate, sheet, and strip, Monel 400. |
| ASTM B168 | Nickel-chromium alloy plate, sheet, and strip, Inconel 600/601, Incoloy 800. |
| ASTM B409 | Nickel-iron-chromium alloy plate, sheet, and strip, Incoloy 825. |
| ASTM B424 | Ni-Fe-Cr-Mo-Cu plate, sheet, and strip. |
Forging Specifications
Forged fittings, flanges, and header plugs are supplied to the following forging specifications, each covering multiple grades that we stock, for example ASTM A182 alone covers our F51, F53, F55, F60, F61, F304, F316, and F321 grades:
| Standard | Scope / Description |
|---|---|
| ASTM A105 | Carbon steel forgings for piping applications, flanges, fittings, header plugs. |
| ASTM A182 | Forged/rolled alloy and stainless steel pipe flanges, fittings, and valves for high-temperature service. Covers F51 (duplex 2205), F53 (super duplex 2507), F55, F60, F61, F304, F316, F321. |
| ASTM A350 | Carbon and low-alloy steel forgings requiring notch toughness testing for piping components. Covers Grade LF2 low-temperature applications. |
| ASTM A694 | Carbon and alloy steel forgings for high-pressure transmission service flanges and fittings. |
ASME / SAE Specifications
ASME (American Society of Mechanical Engineers) publishes material and dimensional specifications closely aligned with ASTM, many ASME “SA” specifications are functionally identical to their ASTM counterparts and are called up interchangeably on pressure-vessel and piping projects. SAE International governs bolt grades used in automotive, machinery, and OEM applications.
| Standard | Scope / Description |
|---|---|
| ASME B16.5 | Pipe flanges and flanged fittings, dimensional and pressure-temperature ratings, governs the flange bolting our RTJ gaskets and header plugs seal against. |
| ASME B18.2.1 | Square and hex bolts and screws, inch series, dimensional standard for hex bolt heads. |
| ASME B18.2.2 | Square and hex nuts, inch series, dimensional standard for hex nuts. |
| SAE J429 | Mechanical and material requirements for externally threaded fasteners, Grades 2, 5, and 8, the automotive/OEM grade system. |
| SAE J995 | Mechanical and material requirements for steel nuts, the standard companion to J429. |
ISO & DIN Specifications
For metric fasteners sold into European, Middle Eastern, and Asian markets, ISO and DIN specifications govern both material properties and dimensions. See our Standard Information hub for the full dimensional breakdown of each standard below.
| Standard | Scope / Description |
|---|---|
| ISO 898-1 | Mechanical properties of carbon steel and alloy steel bolts, screws, and studs by property class (8.8, 10.9, 12.9). |
| ISO 3506-1 | Mechanical properties of corrosion-resistant stainless steel bolts, screws, and studs. |
| DIN 933 | Hexagon head bolts, full thread, the most widely specified metric hex bolt standard. |
| DIN 931 | Hexagon head bolts, partial thread. |
| DIN 934 | Hexagon nuts, the standard companion to DIN 933/931. |
| DIN 125 | Plain washers, Type A. |
| ISO 4014 | Hexagon head bolts, partial thread, metric equivalent of DIN 931. |
| ISO 4032 | Hexagon nuts, style 1, metric equivalent of DIN 934. |
Why Specification Compliance Matters
Bolting failures in high-temperature, high-pressure, or corrosive service are rarely a design problem, they’re a material-selection problem. Ordering to the correct specification, and confirming the exact grade within it, ensures:
- Chemistry and mechanical properties matched to service temperature and pressure
- Corrosion resistance appropriate to the process media (sour service, chlorides, seawater)
- Traceability through mill test certificates (EN 10204 3.1 / 3.2) for audit and code compliance
- Correct grade pairing, for example A193 B7 bolts with A194 Grade 2H nuts, not a mismatched combination
Every product page on jadealloys.com states the exact specification and grade supplied, see our ASTM A193 B7 bolts, ASTM A194 Grade 2H nuts, and ASTM A563 nuts pages for full grade-level detail.
Frequently Asked Questions
1. What is the difference between a bolt specification and a bolt standard?
2. Which bolt specification should I use for high-temperature service?
3. Are ASTM and ASME bolt specifications the same?
4. Do you supply mill test certificates with your fasteners?
Need help selecting the right specification and grade for your application? Contact our technical team or browse our full catalogue.
