2507 Super Duplex Stainless Steel DIN912 Hex Socket Cap Screw ASME B18.3 Uns S32750 100ksi Yield 1/4-28 to 1-1/4 Allen Bolt Head Machine Screw

Product Description

Product Description

Detail shot

This series of products is specially designed for extreme working conditions. They adopt advanced metallurgical processes and precise manufacturing techniques, covering four categories: duplex stainless steel, super austenitic stainless steel, heat-resistant alloys, and precipitation-hardening stainless steel. The products strictly comply with international mainstream standards such as GB, DIN, 150, J1S, ANSI/ASME, etc., and are widely used in high-end equipment manufacturing fields such as petrochemicals, marine engineering, nuclear power equipment, rail transportation, and energy and power.

Process Name	Characteristic	Range of application
Dacromet	No hydrogen embrittlement, resistant to salt fog for 1000 hours+	high strength fastener
Passivation	Forming chromium oxide protective film	Stainless steel products
Ultrasonic cleaning	High cleanliness, no residue	Food and medical grade
Boiling oil	Short-term rust prevention	One unit storage
Polishing wax	Long-term rust prevention	Ocean shipping for export

Specification

Product Type	Standard	Specification Range	Length range
Hex socket full thread	DIN912	AM5-M16	10-150MM
Hex socket thick rod	DIN912	M8-M16	Customized according to the order
External hex bolt full thread	DIN933/GB5783	M5-M42	10-420mm
External hex thick rod	DIN931/GB5783	1/4-7/8"	Customized according to the order
American external hex	ANSI B18.2.1	M6-M45	Customized according to the order
Equal-length double-ended stud	GB901	M4-M45	Full specification
Tapered rod / Tapered bar	DIN975/DIN976	M4-M45	all THREADED ROD

2507 duplex stainless stel

2507 is a ferritic-austenitic (dual-phase) stainless steel. Due to the highwchromium and molybdenum contents in this steel, it has excellent resistanceto pitting corrosion, crevice corrosion and uniform corrosion. The dual-phasemicrostructure ensures that this steel has a high resistance to stress corrosioncracking and also has high mechanical strength.2507 stainless steel is used in the oil and gas industry; offshore oil platforms(heat exchanger tubes, water treatment and water supply systems, fireprotection systems, water spray systems, water stabilization systems;petrochemical equipment, etc.).

Application Scenario

Please enter the title here

Petrochemical industry:
The equipment such as oil refining units, chemical reactors, conveying pipelines, and heat exchangers are tightly connected. 2205 and 2507 duplex steel perform exceptionally well in media containing hydrogen sulfide and chloride ions; 904L is suitable for non-oxidizing acid environments such as sulfuric acid and phosphoric acid.

Ocean Engineering:
Offshore oil platforms, seawater desalination facilities, ship equipment, etc. 2507 super duplex steel has excellent resistance to pitting and crevice corrosion in seawater environments and is the preferred material for marine engineering fasteners.
Nuclear power energy:
Nuclear island equipment, conventional island equipment, flue gas desulfurization devices, etc. 660 precipitation hardening steel is used for high-temperature and high-pressure components; 321 stainless steel is used for pipeline systems.

Rail traffic:
High-speed rail, subway vehicle and track infrastructure construction. The products possess high strength, fatigue resistance, vibration resistance and other characteristics, ensuring safe operation.
Environmental protection equipment:
Equipment for desulfurization and denitrification of flue gas, sewage treatment, and waste incineration. 317L and 904L have excellent corrosion resistance in environments with chlorine-containing exhaust gas and acidic wastewater.

Main Product

Standard parts and non-standard parts

We are a specialized manufacturer and exporter of both standard and custom-engineered hardware fasteners, serving global markets with precision-engineered solutions. Our standard product portfolio encompasses a comprehensive range of stainless steel, carbon steel, and alloy fasteners—including bolts, nuts, screws, washers, and pins—compliant with international standards such as DIN, ISO, ANSI, and JIS, ensuring seamless integration into your existing supply chains. Simultaneously, our non-standard customization capabilities leverage advanced CNC turning, milling, and cold forging technologies to transform your unique designs into high-precision components, from complex geometries to specialized material specifications. With certifications including ISO 9001 and IATF 16949, we serve diverse industries spanning oil and gas, marine engineering, renewable energy, medical devices, and precision instrumentation. Our integrated manufacturing facility enables us to deliver everything from rapid prototyping and small-batch production to high-volume manufacturing, with full material traceability, dimensional inspection reports, and flexible logistics solutions including FOB, CIF, and DDP delivery terms. Whether you require off-the-shelf standard fasteners or bespoke engineered components, we provide end-to-end technical support—from design for manufacturability (DFM) consultation to final quality validation—ensuring your projects receive hardware solutions that meet exacting specifications, competitive lead times, and consistent quality standards.

Company Profile

JIAXING GOSHEN HARDWARE CO.,LTD

Since starting our business in 2010, we have adhered to the concept of "exquisite manufacturing". Beginning from a small processing factory, we have gradually developed into a modern warehouse-style factory equipped with 30 automated cold heading machines, threading machines and fully automatic screening machines. We focus on addressing the pain points of "uneven quality and delayed delivery" that customers encounter in the purchase of fasteners, and have now grown into an influential fastener supplier in the region.

Jiaxing Goshen Hardware Co., Ltd is located in Jiaxing Intelligence Innovation Park, the city is famous as the "Hometown of Fasteners". It close to Hangzhou Bay Bridge, Shanghai Port, Ningbo Port and Jiaxing Zhapu port, which make it have strategic and convenient transportation. As a leading integrated manufacturer and trader, we pride ourselves on delivering top-tier fasteners that are the backbone of industries worldwide. Our comprehensive range of products, from standard screws and bolts to customized precision components, is crafted with meticulous attention to detail and stringent quality controlOur company not only has advanced equipments, excellent quality and humanized management but also has outstanding foreign trade salesmen to supply best service for our customers. Please trust us! "Quality First and Customer service First  is our tenet and goal. And all this time, we are devoting ourselves to developing products for customer`s requirements and establishing a long-term business relations with our esteemed customers. We sincerely hope to cooperate with clients from home and abroad, in order to seek common developments.

Technological Process

Cold heading forming → Thread rolling → Heat treatment → Surface treatment → Quality inspection and packaging

From the import of raw materials to the final delivery of the finished products, we strictly implement a three-level quality control system of "incoming material inspection + process inspection + full inspection of finished products". We use imported multi-station cold heading machines to ensure high concentricity and precise dimensions of the products, and guarantee that every screw is of high quality.

Authentic certification certificate

We are well aware of the strict compliance requirements of B-end buyers. Our company has obtained the ISO 9001:2015 quality management system certification; all exported products are equipped with SGS test reports, which comply with RoHS 2.0 and REACH SVHC EU environmental protection regulations, ensuring smooth customs clearance and no trade barriers for the products.

Customer reviews and global exhibition screenings

We have been providing services to globally renowned building materials chain supermarkets, large auto parts distributors and industrial groups for a long time. With stable delivery schedules, highly competitive prices and professional customized (OEM) services, we have received unanimous praise from our global customers.

FAQ

Q: Are you a trading company or a manufacturer?
A: We are a direct manufacturing factory with a complete production chain, integrating cold heading, thread rolling, heat treatment, and surface finishing. We produce and export directly, offering you the most competitive factory direct price without any middleman markups
 
Q: Can you provide free samples?
A: Yes! For standard products, we offer free samples for your quality testing. You only need to cover the international courier shipping cost (freight collect or prepaid), and the sample fee will be fully waived. For custom samples, a small mold or setup fee may be charged, but it will be fully refunded upon confirmation of the bulk order.
 
Q: Do your products meet European and American environmental standards?
A: Absolutely. All our screws, bolts, and fasteners are strictly produced to international standards and are fully RoHS 2.0 compliant, meeting REACH SVHC regulations. We can provide third-party SGS test reports to ensure your goods clear customs smoothly in EU and US markets.
 
Q: What payment terms do you support?
A:  We primarily accept T/T (Telegraphic Transfer), generally 30% deposit in advance, and 70% balance against the copy of the Bill of Lading (B/L). For regular and trustworthy long-term partners, we can negotiate more flexible payment terms, such as L/C at sight or monthly settlements.
 
Q: Can you provide custom packaging?
A:Of course. We highly value the retail and branding needs of our B2B clients. We can customize inner boxes, outer cartons, stickers, labels, and packaging with your company LOGO according to your design requirements. Whether it's small retail packaging for supermarket shelves or industrial pallet packaging for bulk use, we can perfectly match your needs.