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C3‑80 Fasteners: Hex Bolts, Socket Caps, Studs, Nuts, Washers, and Metric Dimensions
For applications that demand high tensile strength combined with moderate corrosion resistance—pump and valve assemblies, steam turbine bolting, industrial machinery, and automotive components—C3‑80 fasteners deliver a cost‑effective, reliable solution. At RAYCHIN LIMITED, a specialist global manufacturer and supplier of stainless steel and special alloy fasteners, we produce the complete range of C3‑80 products: hex bolts, socket head cap screws, stud bolts, threaded rod, nuts, washers, and set screws. Every fastener is manufactured from certified 1.4021 (X20Cr13) martensitic stainless steel, quenched and tempered to achieve a minimum tensile strength of 800 MPa, and shipped with full documentation.
1. C3‑80 Fastener Product Forms
? C3‑80 Hex Bolts
C3‑80 hex bolts are manufactured to ASME B18.2.1, DIN 931/933, and ISO 4014. Available in partial and full thread, sizes from M6 to M48 (metric) and 1/4″ to 2″ (imperial). Quenched and tempered to achieve an 800 MPa minimum tensile strength, they are ideal for pump flanges, steam valve bonnets, and general heavy machinery.
? C3‑80 Socket Head Cap Screws
C3‑80 socket head cap screws per ASME B18.3 provide a compact, high‑torque fastening solution for confined spaces. Sizes from M3 to M24 and #4 to 1″. Their internal hex drive allows precise torque application, making them suitable for machine tool assemblies, fixture clamps, and compressor housings.
? C3‑80 Stud Bolts
C3‑80 stud bolts are available as double‑end studs per ASME B16.5 or fully threaded studs per DIN 976. Diameters from M6 to M64 and 1/4″ to 2‑1/2″. Lengths up to 3 meters. Rolled threads for enhanced fatigue life. Ideal for flanged connections in steam and water piping.
? C3‑80 Threaded Rod
C3‑80 threaded rod (continuous‑thread studding) is cut to your specified length with chamfered ends. Available in diameters from M6 to M64 and 1/4″ to 2‑1/2″. Full lot certification and PMI testing included as standard.
? C3‑80 Nuts
C3‑80 nuts per ASME B18.2.2 and DIN 934 are proof‑load matched to the corresponding bolt or stud. Heavy hex and prevailing‑torque lock nuts are available. Heat‑treated to provide the necessary strength without brittleness.
⬜ C3‑80 Washers
C3‑80 washers—flat washers per ASME B18.22.1 and DIN 125, spring lock washers per DIN 127. Matching bolt diameters from M6 to M48 and 1/4″ to 2″. They distribute clamp load and protect flange surfaces from damage.
2. C3‑80 Set Screws and Additional Configurations
C3‑80 set screws are manufactured to ASME B18.3 with cup, cone, flat, or dog points. They are used for securing collars, gears, and pulleys on shafts in industrial machinery. RAYCHIN can also produce custom flanged bolts, stepped studs, and reduced‑shank fasteners from your engineering drawings.
3. C3‑80 Fasteners Dimensions and Metric Capabilities
C3‑80 metric bolts are fully integrated into our production. RAYCHIN stocks metric‑diameter bar in key sizes and can produce ISO metric threads to ISO 261/965 standards. Specify the standard and dimensions on your RFQ.
4. Quality Assurance and Certification
Every C3‑80 fastener shipment from RAYCHIN includes:
- Material certification to ISO 3506 C3‑80, EN 10088‑3 (1.4021), 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, and hardness (100% verification).
- Heat treatment batch records for quenching and tempering cycles.
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.
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