Hex Socket Set Screws
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Sunmach manufactures high-performance Duplex 2205 Hex Socket Set Screws (UNS S32205) engineered for secure, vibration-resistant locking in rotating shafts and precision machinery. Traditional fasteners with protruding heads create clearance issues and rely only on thread friction, which can loosen under continuous vibration. Sunmach’s headless set screws sit completely flush and use precision point geometries (cone, cup, flat, dog) to create a strong mechanical lock that prevents shaft slippage even under millions of high-RPM cycles. These set screws deliver superior strength and excellent seawater corrosion resistance, making them ideal for critical applications where fastener slip or corrosion can cause equipment failure. Manufactured with advanced forming, precision threading and strict quality control, they ensure reliable long-term performance in demanding industrial environments.
Hex Socket Set Screws
Sunmach is one of the leading global manufacturer and supplier of Standard & Custom made Premium Nickel Alloys Hex Socket Set Screws engineered for the most critical industrial applications. We are an ISO 9001:2015 certified company, demonstrating our commitment to rigorous quality standards and consistent product excellence to deliver the best of the Nickel Alloys & Special Steel Fasteners.
Nickel Alloys Hex Socket Set Screws are manufactured by us from a range of high-performance & exotic materials such as : Hastelloy® C-276, Hastelloy® C-22, Hastelloy® B-2, Monel® 400, Monel® K-500, Inconel® 600, Inconel® 625, Inconel® 718, Titanium Grade 2, Titanium Grade 5, Titanium Grade 7, Duplex S31803, Duplex S32205, Super Duplex S32750 to various Stainless Steel grades of SS 304L, SS 316L SS 310, SS 310H, SS 347H, etc followed by Special Stainless Steel Grades such as 904L Stainless Steel, UNS N08904, DIN EN1.4539 Nitronic® 50, Nitronic® 60, UNS S21800, DIN EN, 254 SMO, UNS S31254, DIN EN 1.454, A4-80 Stainless Steel etc.
Sunmach’s extensive manufacturing capabilities and In-Stock Genuine & Authentic Raw Material availability allows us to support demanding industrial requirements with durable, corrosion-resistant, heat resistant & reliable Nickel Alloys Hex Socket Set Screws delivered dot in time to any corner of the world, supported by all required test certificates and with 100% traceability.
Nickel Alloy Hex Socket Set Screws Specifications
Using Advanced Hot Forming Technology, Our Nickel Alloys Hex Socket Set Screws are manufactured in various specifications including DIN, ISO, ANSI and IS standard in nominal diameters ranging from 1/4” to 2” (M6 to M50). We provide Hex Socket Set Screws in both Imperial and metric sizes to accommodate diverse application needs. Our Nickel Alloys Hex Socket Set Screws are specially engineered to withstand high temperature and high-pressure, ensuring superior strength and reliability.
Nickel Alloy Hex Socket Set Screws Application Industries
Sunmach serves a diverse range of markets including Chemical Processing, Semiconductor, Power Generation, Aerospace, Oil & Gas, Pharmaceutical, Food & Beverage, Marine, Pulp & Paper, Petrochemical & Refining, Air Pollution Control and Water Treatment.
Sizes
| Metric : | M6 to M50 |
| Imperial : | 1/4" to 2" |
| MOQ : | 1 Piece & Above |
| Certification : | EN 10204 3.1, EN 10204 3.2 (On Demand) |
Specification
| Bolt | DIN | ISO | ANSI | IS |
|---|---|---|---|---|
| Hex Socket Set Screw | 931 | 4014 | B18.2.1 | 1364 |
Dimensions - Imperial
Dimensions - Metric
Frequently Asked Questions
Common questions about Sunmach Duplex 2205 Hex Socket Set Screws
A: They are ideal for shaft locking, impeller retention, coupling alignment, valve stems, bearing retention and subsea equipment where vibration-resistant, flush fastening is required.
A: With PRE ~35 and dual-phase structure, they provide excellent resistance to pitting and stress-corrosion cracking, proven in long-term desalination installations.
A: Duplex 2205 is the best all-round choice for most applications. Use Super Duplex only for extreme conditions.
A: Cone, cup, flat and dog points to suit different locking and alignment requirements.
A: All screws come with full traceability and Mill Test Certificates from an ISO 9001:2015 certified manufacturer.