High Strength Carbon Steel Stainless Steel API Series 3/8"-5" Fastener

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Product Overview

Model NO.

Fastener

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST

Grade

Customized on Demand

Application

Machinery, Chemical, Environmental, Building

Finish

Hot-Working

Specification

M10~M120, 3/8"~5"

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Product Specifications

Category	Type	Size Range	Material	Standards
Nuclear Power Fasteners	Full Thread Stud	M10-M120	Carbon/Alloy/Stainless Steel	GB/T901, SH/T3404, ASTM A193
	Hexagon Bolt	M10-M68	Carbon/Alloy/Stainless Steel	GB/T5780, GB/T5782
	Hexagon Nut	M10-M120	Carbon/Alloy/Stainless Steel	GB/T6170, GB/T6175
	Spring Washer	M10-M42	Carbon/Alloy/Stainless Steel	GB/T93
API Series	Threaded Stud	M10-M120 (3/8"-5")	Carbon/Alloy/Stainless Steel	API 20E/20F, ASTM A193
	Heavy Hex Bolt	M20-M120 (3/8"-5")	Carbon/Alloy/Stainless Steel	API 20E/20F, Forging process
	Gate Valve Bolt	M20-M120 (3/8"-5")	Carbon/Alloy/Stainless Steel	ASTM A320/A320M

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Workshop & Production

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Corporate Profile

Rooted in the machinery manufacturing industry for 67 years, our enterprise is a national high-tech entity and a Contract & Creditworthy Enterprise. With a total area of 360,000 square meters, we have transitioned from a local workshop to a provincial standardized joint-stock enterprise. Our core philosophy is "Integrity for Long-Term Success, Syncing with the Future." We focus on high-efficiency heat exchangers, high-strength fasteners, heavy-duty forgings, and automotive components.

Our Core Advantages

01 International Certification
Holds A1/A2 pressure vessel design qualifications, ASME "U" & "NB" stamps, IATF16949 certification, ensuring quality standards align with international benchmarks.

02 Global Client Recognition
Core supplier to major energy corporations and long-term partner for international automotive OEMs. Products exported to Europe, the U.S., Middle East, and Central Asia.

03 R&D and Production Power
Equipped with 2,000+ sets of advanced production and testing equipment. Our automated automotive axle line ensures full-process efficiency and precision control.

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Process & Logistics

Production Process

Packaging & Shipping

For smaller orders, we utilize express delivery services such as TNT, DHL, UPS, or EMS. For bulk orders, we recommend Air or Sea shipping through nominated forwarders. Freight collect options are available for bulk shipments.

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Frequently Asked Questions

Are you a factory or a trading company?

We are a specialized manufacturer with over 30 years of industry experience.

What is the minimum order quantity (MOQ)?

MOQ varies by product. Standard items can start from 1 unit, while customized designs are negotiable based on complexity.

How do you ensure product quality?

Our quality leads the industry. We provide samples for practical testing and verification to ensure compliance with your requirements.

What payment methods are accepted?

We accept standard international payment methods including T/T and L/C.

Can you provide faster delivery for urgent orders?

We prioritize timely delivery. Accelerated schedules depend on order specifics and material availability; adjustments are made whenever possible.

What certifications do you hold?

We hold A1/A2 pressure vessel design qualifications, ASME "U" & "NB" stamps, and IATF16949 certification, aligning with global benchmarks.

Product Detail

High Strength Carbon Steel Stainless Steel API Series 3/8"-5" Fastener

Product Description

Product Overview