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Alloy 330 (RA330) Fasteners: Hex Bolts, Studs, Nuts, Washers & Threaded Rod for Extreme High Temperatures
RAYCHIN LIMITED

Alloy 330 (RA330) Fasteners: Hex Bolts, Studs, Nuts, Washers & Threaded Rod for Extreme High Temperatures

For furnace hardware, radiant tubes, heat‑treat fixtures, and carburizing environments where oxidation and thermal cycling destroy standard stainless steels, Alloy 330 fasteners provide the ultimate solution. RAYCHIN LIMITED, a specialist global manufacturer and supplier of high‑temperature alloy fasteners, produces the complete line of Alloy 330 hex bolts, stud bolts, socket head cap screws, heavy hex nuts, washers, and threaded rod. Every fastener is manufactured from certified UNS N08330 (RA330) bar, solution‑annealed, and shipped with full documentation. This catalog details our product range, dimensional capabilities, and quality standards for your most demanding thermal applications.

? RAYCHIN CAPABILITY: We manufacture Alloy 330 (UNS N08330 / RA330) fasteners in‑house—from certified bar stock through CNC machining, thread rolling, and final inspection. Every shipment includes EN 10204 3.1 certification and PMI reports. Type 3.2 with third‑party witness is available.

1. Alloy 330 Fastener Product Forms

? Alloy 330 Hex Bolts

Alloy 330 hex bolts are manufactured to ASME B18.2.1, DIN 931/933, and ISO 4014. Available in partial and full thread, sizes from 1/4″ to 2″ and M6 to M48. Ideal for furnace door clamps, radiant tube supports, and heat‑treat basket assembly up to 1150°C.

? Alloy 330 Stud Bolts & Double End Studs

Alloy 330 stud bolts and Alloy 330 double end studs are produced as double‑end studs (ASME B16.5) or fully threaded studs (DIN 976). Diameters from 1/4″ to 2‑1/2″ and M6 to M64. Lengths up to 3 meters. Rolled threads for enhanced fatigue life.

? Alloy 330 Socket Head Cap Screws

Alloy 330 socket head cap screws per ASME B18.3 provide compact, high‑torque fastening for confined spaces. Sizes from #4 to 1″ and M3 to M24. Common in sensor mounts and linkage pins in furnace applications.

? Alloy 330 Threaded Rod

Alloy 330 threaded rod (continuous‑thread studding) is cut to your specified length with chamfered ends. Diameters from 1/4″ to 2‑1/2″ and M6 to M64. Full lot certification and PMI testing included.

? Alloy 330 Heavy Hex Nuts

Alloy 330 heavy hex nuts per ASME B18.2.2 and DIN 934 are proof‑load matched to the corresponding bolt or stud. All‑metal prevailing‑torque lock nuts are also available for vibration‑resistant assemblies.

⬜ Alloy 330 Washers

Alloy 330 washers—flat per ASME B18.22.1 / DIN 125 and spring lock per DIN 127—match bolt diameters from 1/4″ to 2″ and M6 to M48. Custom outside diameters and thicknesses available.

2. Alloy 330 Flanged Bolts and Custom Configurations

Alloy 330 flanged bolts integrate a washer‑like bearing surface under the head, distributing clamp load over a wider area. RAYCHIN manufactures these to your custom dimensions—head diameter, flange thickness, under‑head fillet radius—as well as stepped studs, reduced‑shank bolts, and body‑bound fasteners from your CAD drawings.

3. Alloy 330 Fasteners Dimensions: Metric and Imperial

Fastener TypeMetric RangeImperial RangePrimary Standards
Hex BoltsM6 – M481/4″ – 2″ASME B18.2.1, DIN 931/933
Stud Bolts / Threaded RodM6 – M641/4″ – 2‑1/2″ASME B16.5, DIN 976
Socket Head Cap ScrewsM3 – M24#4 – 1″ASME B18.3
Heavy Hex NutsM6 – M481/4″ – 2″ASME B18.2.2, DIN 934
Flat WashersM6 – M481/4″ – 2″ASME B18.22.1, DIN 125
Flanged BoltsM8 – M365/16″ – 1‑1/2″Per customer specification

Alloy 330 metric bolts and imperial sizes are fully covered. RAYCHIN maintains tooling and inventory for both measurement systems. Simply specify the thread standard and dimensions on your RFQ.

4. Quality Assurance and Certification

Every Alloy 330 fastener shipment from RAYCHIN includes:

  • Material certification to ASTM B511 (UNS N08330)
  • EN 10204 Type 3.1 certificate (Type 3.2 with independent third‑party witness on request)
  • Positive Material Identification (PMI) report—OES analysis on finished fasteners
  • Mechanical test report: tensile, yield, elongation, and hardness
Request a Quote for Your Alloy 330 Fastener Requirements

Send your part numbers, drawings, or specifications to our technical sales team. We'll provide a complete quotation with lead time, dimensional compliance, and certification details within 24 hours.

✉️ sales@ray-chin.com

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