SUNPRO Alloy Fasteners
InconelHastelloyMonelDuplexTitanium

Specialty Alloy Fasteners for Extreme Conditions

Leading manufacturer of high-performance alloy fasteners for petrochemical, power generation, marine, and aerospace industries. M4-M100, certified to ASTM/ASME/DIN standards.

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17-4PH-Hex head boltSpecial Products

17-4PH-Hex head bolt

Precipitation-hardened 17-4PH stainless steel threaded rods offering excellent mechanical properties at temperatures ...

17-4PH
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Special Products

Titanium Gr5 Eye Bolt

Lightweight yet ultra-strong Titanium Grade 5 (Ti-6Al-4V) eye bolts for aerospace, marine, and chemical processing. S...

Titanium Gr5 (Ti-6Al-4V)Titanium Gr2
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Washers

Inconel 625 Spring Washer

Inconel 625 spring washers for high-temperature bolting applications. Maintains tension and prevents loosening under ...

Inconel 625Incoloy 825
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Washers

Monel 400 Flat Washer

Monel 400 flat washers for seawater and hydrofluoric acid applications. Excellent corrosion resistance in marine envi...

Monel 400Monel K500
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Serving Russia, Central Asia, Southeast Asia, and global markets. Small batch customization available with fast delivery and consistent quality.

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