RAYCHIN LIMITED, we are materials experts who focus only on fasteners made from the highest performance specialty metals for the most challenging and extreme applications.

• Stainless Steel Series: Martensitic Stainless Steel, Ferritic Stainless Steel, Austenitic Stainless Steel, Austenitic-Ferritic (Duplex) Stainless Steel and Precipitation Hardening Stainless Steel.

• Super Alloys Series: Nickel-based Alloy, Cobalt-based Alloy, Iron-based Alloy, Molybdenum-based Alloy, ‌Titanium-based Alloy, Copper based Alloy, ‌Zirconium Alloy.

• Alloy Steel Series: Low Alloy Steel, Medium Alloy Steel, High Alloy Steel, Special Alloy Steel.

Eye Bolts | Lifting Eye Bolts & Forged Eye Nuts in Special Alloys | RAYCHIN Manufacturer

Meta Description: RAYCHIN manufactures certified eye bolts in 25+ alloys including MP35N, Titanium & Waspaloy. DIN 580 eye bolts, shoulder eye bolts & custom lifting points compliant with ASME, ISO, ASTM, DIN standards. Global supplier for marine, aerospace & industrial lifting.

Certified Eye Bolts for Critical Lifting, Rigging & Anchoring Applications

RAYCHIN is a specialized manufacturer of engineered eye bolts (commonly called lifting eye bolts, eyenuts, or lifting points) — precision fasteners designed with an integral eye for safe and reliable lifting, rigging, anchoring, and tensioning applications. Our eye bolts are manufactured from over 25 advanced alloys and are fully certified to meet the rigorous demands of marine, aerospace, construction, renewable energy, and heavy industry sectors where load safety is paramount.

Eye Bolt Types & Classifications

We manufacture comprehensive eye bolt configurations to address diverse load-bearing requirements:

1. Standard Eye Bolts (Shoulder Type):

• DIN 580 Eye Bolts: German standard shoulder-type eye bolts with defined working load limits, manufactured to DIN 580, ISO 3266, and BS 4278 specifications.

• Shoulder Eye Bolts: Feature a precision shoulder to prevent bending loads, compliant with ASME B18.15, ASTM A489, and MIL-E-8948 standards.

• Regular Pattern Eye Bolts: General purpose eye bolts without shoulder for straight tensile loads per ASME B18.15.

2. Special Application Eye Bolts:

• Swivel Eye Bolts: Incorporate a rotating eye to prevent cable twisting during lifting operations, meeting DIN 582 and ISO 3266 standards.

• Screw Eye Bolts (Eye Screws): Fully threaded with formed eye for adjustable anchoring points in wood or soft materials.

• Forged Eye Bolts: Heavy-duty, hot-forged eye bolts for marine mooring, crane applications, and structural lifting points.

• Lifting Eye Nuts (Eyenuts): Nuts with integrated lifting eye for temporary lifting of threaded components.

• Custom Eye Bolt Designs: Manufactured to exact OEM specifications with unique eye geometries, thread configurations, and special load-rated features.

Material Grades & International Standard Specifications

Our eye bolts are precision-engineered from the following advanced material systems with full international standard compliance and certification:

1. Precipitation-Hardening Stainless Steels:

• 17-4 PH (UNS S17400): Supplied to ASTM A564 Type 630, AMS 5643, DIN 1.4542 in H900, H1025, H1150 tempers for high-strength aerospace lifting points.

• PH 13-8 Mo (UNS S13800): Manufactured per ASTM A564 Type 625, AMS 5629 for superior strength and corrosion resistance in marine lifting eyes.

2. Nickel-Based Superalloys:

• Inconel® Alloys: Inconel 718 (UNS N07718/AMS 5663), Inconel 625 (UNS N06625/ASTM B446), Inconel 600 (UNS N06600) for high-temperature industrial lifting applications.

• Monel® Alloys: Monel K500 (UNS N05500/AMS 4676), Monel 400 (UNS N04400) for marine hardware and offshore certified lifting eyes.

• Hastelloy® Alloys: Hastelloy C276 (UNS N10276/ASTM B574), C22 (UNS N06022), B2 (UNS N10665) for severe chemical processing environments.

• Waspaloy (UNS N07001): Per AMS 5708, AMS 5824 for high-temperature aerospace lifting points.

• Nimonic® Series: Nimonic 80A (UNS N07080), Nimonic 90 (UNS N07090) compliant with BS HR 501/502 standards.

3. Duplex & Super Duplex Stainless Steels:

• Duplex Steel: Duplex 2205 (UNS S32205) to ASTM A193 B8S, EN 1.4462 specifications for offshore platform lifting eyes.

• Super Duplex Alloys: Alloy 926 (UNS N08926), AL-6XN® (UNS N08367) meeting ASTM A193 B8S, NACE MR0175.

4. Titanium Alloys:

• Grade 5 Titanium (Ti-6Al-4V): UNS R56400 per AMS 4928, ASTM F467 for lightweight, high-strength aircraft lifting eyes.

• Grade 2 Titanium: UNS R50400 to ASTM B348, AMS 4921 for marine grade eye bolts.

5. Refractory & Exotic Metals:

• Tantalum (UNS R05200): ASTM B365, AMS 7845 for chemical equipment lifting points.

• Zirconium 702 (UNS R60702): ASTM B550, ASME SB550 for acid handling applications.

• Molybdenum (UNS R03600) & Tungsten: For extreme temperature lifting applications.

6. Specialty Alloys:

• Nitronic® Alloys: Nitronic 60 (UNS S21800), Nitronic 50 (UNS S20910) to ASTM A193 B8N for high-strength, wear-resistant lifting eyes.

• High-Performance Stainless: 254 SMO (UNS S31254/EN 1.4547), 310SS (UNS S31000), Alloy 20 (UNS N08020), Alloy 330 (UNS N08330).

• Cobalt Alloys: MP35N (UNS R30035/AMS 5844), MP159 (AMS 5846) for ultra-high strength lifting eye bolts with exceptional toughness.

• Iron-Based Superalloy: A286 (UNS S66286) to AMS 5731, ASTM A453 Grade 660.

7. Aluminum Alloy:

• Aluminum 7075 (UNS A97075): AMS QQ-A-225/9, ASTM F467 in T6, T73 tempers for lightweight aerospace lifting points.

8. Pure Nickel & Incoloy:

• Nickel 200 (UNS N02200): ASTM B160, ASME SB160.

• Incoloy® Alloys: Incoloy 825 (UNS N08825), Incoloy 925 (UNS N09925).

Custom Eye Bolt Manufacturing & Certification Services

RAYCHIN provides complete custom eye bolt manufacturing with full certification from your technical specifications:

• Standards Compliance: DIN 580, DIN 582, ISO 3266, ASME B18.15, ASTM A489, BS 4278, MIL-E-8948, and customer drawings.

• Load Rating & Certification: Working Load Limit (WLL) certification, Proof Load testing (typically 2x WLL), Breaking Load testing, certification to DNVGL-ST-0378, ABS, Lloyd's Register.

• Special Features: Safety latches, thread locking features, special eye geometries (round, triangular, D-shape), shouldered designs, heat-treated sections.

• Surface Treatments: Hot-dip galvanizing, electroplating, passivation, electropolishing, paint marking for load rating.

• Full Processing: Hot forging, CNC machining, thread rolling, heat treatment, bending/forming, non-destructive testing (NDT).

• Quality Assurance: Complete MTRs (EN 10204 3.1/3.2), load test certificates, NDT reports, compliance with ISO 9001, AS9100, DIN, ABS, CE Marking.

Industry Applications

• Marine & Offshore: Mooring systems, deck lifting points, lifeboat davits (DNV, ABS, LR certified)

• Aerospace & Defense: Engine lifting, airframe hoisting points, weapon system handling (AS9100, MIL-SPEC)

• Construction & Heavy Lifting: Precast concrete lifting, steel erection, rigging applications

• Renewable Energy: Wind turbine component lifting, solar tracker mounting, hydroelectric maintenance

• Industrial Equipment: Machinery installation, press tool handling, reactor vessel lifting

• Stage & Rigging: Entertainment industry rigging, lighting grid suspension

Why Choose RAYCHIN?

• Lifting Certification Expertise: In-house load testing and certification capabilities

• Forging Specialization: Hot forging for superior grain structure in critical lifting components

• Material Knowledge: Deep expertise in high-strength alloys for demanding lifting applications

• Global Certification: Products certified to DNV, ABS, Lloyd's Register, TÜV standards

• Engineering Support: Load rating calculation and design optimization for safety

• Global Supply: Certified supplier to North America, Europe, Asia-Pacific, Middle East markets

Request Eye Bolt Quotation
Contact RAYCHIN for engineering consultation and certified pricing. Submit your drawings for DIN 580 eye bolts, shoulder eye bolts, or custom lifting points.

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