ASTM A193 Grade B7 Alloy Steel Stud Bolts with 2H Heavy Hex Nuts
MaterialAISI 4140 Cr-Mo Heat Treated Alloy Steel
Size1/2" to 3-1/2" Diameter (Cut to Length)
DIN 933 / ISO 4017 / ISO 898-1· Heavy Hex Bolts & Screws
DIN 933 / ISO 4017 High Tensile Hexagon Head Bolts
Structural steel frames, machinery mounting, and industrial plant civil assemblies.
100% Stamped Heat Number Traceability
EN 10204 3.1 MTC Supplied
Air Cargo Eligible (24–48h Dispatch)
Technical specifications & verification parameters
| Parameter | Specification value |
|---|---|
| Design & manufacturing standard | DIN 933 / ISO 4017 / ISO 898-1 |
| Product classification | Heavy Hex Bolts & Screws |
| Material or metallurgy grade | Medium Carbon / Low Alloy Steel Quenched & Tempered |
| Nominal size / dimension range | M8 to M48 Metric (Lengths up to 300mm) |
| Class or pressure rating | Property Class 8.8 / 10.9 |
| Export HS Code | 73181500 |
| Country of origin | India |
| Dispatch & lead time | Dispatch from supplier stock, confirmed at quotation · Direct sea container transit (3–4 days to UAE/Oman) or priority Air Cargo dispatch (24–48h) for emergency shutdown spares. |
| Inspection & test documentation |
|
Need dual-certification, cut-to-length studs, or CIF pricing for your project?
Industrial bolting supply & quality scope
ASTM A193/A194 alloy, ASTM A320 low-temperature, stainless 304/316, and marine fluoropolymer coated bolting for high-pressure flanged piping skids, heat exchangers, and offshore structures.
Manufacturing Standards
ASTM A193 (Grades B7, B8, B8M), ASTM A194 (Heavy Hex 2H, 8, 8M), ASTM A320 (L7, L7M), DIN 933, DIN 931, ISO 4017, and ASME B18.2.1 heavy hex bolts with UNC/8UN threading.
Protective Marine Coatings
PTFE Xylan 1070 blue fluoropolymer dry film coating (1000+ hr salt spray resilience), hot-dip galvanized per ASTM A153 / EN ISO 10684, and zinc-nickel electroplate for marine splash zones.
Testing & Mill Certification
EN 10204 3.1 inspection certificate with stamped heat numbers, hardness test reports (HRC 35 max for B7), Charpy V-notch impact tests at -100°C on request, and coating thickness verification (ASTM D7091).
Requisition Notes
Specify nominal bolt diameter, stud length, heavy hex nut count (typically 2 nuts per stud), washer specifications, and protective surface coating requirements for quotation.
Related products in this package
Commonly consolidated within the same shipment to Arabian Gulf ports.
PTFE Xylan 1070 Fluoropolymer Coated Flange Bolting Assembly
MaterialAlloy Steel AISI 4140 with Fluoropolymer Dry Film Coating
Size5/8" to 2-1/2" Diameter
ASTM A193 Grade B8M Class 2 Stainless Steel 316 Stud Bolts
MaterialAISI 316 / 316L Stainless Steel Strain Hardened
Size1/2" to 2" Diameter
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