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Nitronic Fasteners Catalog: Hex Bolts, Socket Caps, Studs, Nuts, Washers & Flanged Bolts in Nitronic 50 & 60
RAYCHIN LIMITED

Nitronic Fasteners Catalog: Hex Bolts, Socket Caps, Studs, Nuts, Washers & Flanged Bolts in Nitronic 50 & 60

When your design demands high strength, corrosion resistance, and galling‑free performance without the cost of nickel‑base superalloys, Nitronic fasteners deliver. At RAYCHIN LIMITED, we manufacture the complete spectrum of Nitronic 50 hex bolts, Nitronic 60 socket head cap screws, stud bolts, threaded rod, heavy hex nuts, washers, Nitronic 50 flanged bolts, and Nitronic 60 nuts—all produced in‑house with full material traceability and certification. This catalog details our product forms, dimensional capabilities, and quality standards to support your procurement with precision.

? RAYCHIN CAPABILITY: We manufacture Nitronic 50 (UNS S20910) and Nitronic 60 (UNS S21800) fasteners under one quality system—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. Nitronic Fastener Product Range

? Nitronic 50 Hex Bolts

Nitronic 50 hex bolts provide roughly twice the yield strength of 316 stainless steel, combined with excellent chloride pitting resistance. Manufactured to ASME B18.2.1, DIN 931/933, and ISO 4014. Sizes from 1/4″ to 2″ and M6 to M48. Ideal for marine hardware, chemical processing flanges, and pump casing bolting.

? Nitronic 60 Socket Head Cap Screws

Nitronic 60 socket head cap screws per ASME B18.3 deliver outstanding galling resistance—making them the definitive choice for assemblies that must be repeatedly made up and broken out without thread seizure. Sizes from #4 to 1″ and M3 to M24. Ideal for valve stems, bridge bearing assemblies, and industrial wear plates.

? Nitronic Stud Bolts

Nitronic stud bolts are available in both Nitronic 50 (high strength) and Nitronic 60 (anti‑galling). Double‑end studs per ASME B16.5, fully threaded studs per ASME B18.31.2 and DIN 976. Diameters from 1/4″ to 2‑1/2″ and M6 to M64. Lengths up to 3 meters. Rolled threads for optimal fatigue life.

? Nitronic Threaded Rod

Nitronic threaded rod (continuous‑thread studding) is cut to your specified length with chamfered ends. Available in both Nitronic 50 and Nitronic 60, diameters from 1/4″ to 2‑1/2″ and M6 to M64. Full lot certification and PMI testing included as standard.

? Nitronic Heavy Hex Nuts

Nitronic heavy hex nuts per ASME B18.2.2 and DIN 934 are proof‑load matched to the corresponding bolt or stud. Nitronic 60 nuts are the preferred pairing for Nitronic 50 bolts to eliminate galling during assembly, providing a proven dissimilar‑metal anti‑galling solution. All‑metal prevailing‑torque lock nuts also available.

⬜ Nitronic Washers

Nitronic washers—flat washers per ASME B18.22.1 and DIN 125, spring lock washers per DIN 127. Matching bolt diameters from 1/4″ to 2″ and M6 to M48. Custom outside diameters and thicknesses are available to meet specific joint designs.

2. Nitronic 50 Flanged Bolts and Special Configurations

Nitronic 50 flanged bolts integrate a washer‑like bearing surface under the head, distributing clamp load over a wider area without a separate washer component. RAYCHIN can manufacture these to your specific dimensional requirements—head diameter, flange thickness, under‑head fillet radius—as well as produce stepped studs, reduced‑shank bolts, and body‑bound fasteners from your engineering drawings. Our CNC machining centers accept CAD files in all common formats.

3. Nitronic 50 vs Nitronic 60: Which Grade for Your Application?

Application RequirementRecommended GradeReason
High tensile strength + corrosionNitronic 50Yield strength up to 145 ksi (cold‑worked); excellent pitting resistance
Galling‑free assembly and disassemblyNitronic 60Industry‑leading anti‑galling properties; ideal for threaded assemblies
Mixed pairing (bolt + nut)Nitronic 50 bolt + Nitronic 60 nutCombines high bolt strength with anti‑galling nut
Marine seawater boltingNitronic 50Superior pitting resistance; PREN ~34
Valve stem and pump shaft fastenersNitronic 60Wear and galling resistance critical for moving parts

4. Nitronic Fasteners Dimensions and Size Range

Fastener TypeMetric RangeImperial RangePrimary Standards
Hex BoltsM6 – M481/4″ – 2″ASME B18.2.1, DIN 931/933
Socket Head Cap ScrewsM3 – M24#4 – 1″ASME B18.3
Stud Bolts / Threaded RodM6 – M641/4″ – 2‑1/2″ASME B16.5, DIN 976
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″Customer specification

Non‑standard Nitronic fasteners dimensions, special thread forms, and OEM‑specific head markings are available on request. Simply provide the standard designation and required dimensions with your inquiry.

5. Quality Assurance and Certification

Every Nitronic fastener shipment from RAYCHIN includes:

  • Material certification to ASTM A193 (Nitronic 50), ASTM A276 (Nitronic 60), or customer‑specified standards.
  • 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, reduction of area, and hardness.
  • Optional coatings: MoS₂, PTFE‑based dry film lubricants for additional galling protection or controlled torque‑tension behavior.
Request a Quote for Your Nitronic 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

? www.ray-chin.com | Nitronic 50 · Nitronic 60 · Hex Bolts · Studs · Flanged Bolts

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