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gdfastenal.com

Custom Spring Manufacturer

GD Fastenal  specializes in custom spring production, our force control,reliable elasticity and strict quality inspection ensure consistent performance across various industrial and mechanical applications. We accepts MOQ≥1000pcs normally, but for orders of extra large size, special materials, and special purposes, it will be discussed separately.

Type of Springs GD Fastenal Manufacturing

In the field of fasteners, springs are primarily categorized into six types: Helical Springs(include compression spring, extension spring and torsion spring), Belleville Disc Spring, Wave Springs & Wave Washers(include single-turn wave spring, multi-turn wave spring and wave spring washers), Spring Lock Wahsers(include Standard Helical Spring Lock Washer, Saddle Spring Washer and Heavy-duty Spring Lock Washer), Circlips & Snap Rings (Elastic Retaining Rings), Stamped Elastic Springs & Special Elastic Components. They are widely used for bolt preload and anti-loosening, axial positioning, clearance compensation, and shock absorption.

Springs are structurally designed and customized according to practical mechanical assembly and working condition requirements. Different types of springs possess unique mechanical properties to adapt to diverse load modes.Tension Springs and Compression Springs are most widely used in mechanical and daily scenarios.

Compression Springs

Compression springs are the most mainstream elastic components specialized in bearing continuous axial pressure. They are manufactured with reserved gaps between coil turns, allowing stable compression deformation and effective elastic rebound under axial load. This structural design enables them to maintain consistent stiffness, excellent pressure resistance and reliable fatigue resistance during long-term cyclic compression. Widely applied in mechanical equipment, fastener connection systems, daily hardware and industrial precision structures, they are primarily used for bolt pre-tightening, component supporting, mechanical resetting and pressure buffering.

Applications: Bolt pre-tightening, assembly gap compensation, mechanical reset structure.

Common Materials: 65Mn, 60Si2Mn, 50CrVA, SUS304, SUS316 stainless steel.

Tension Springs

Tension springs, also known as extension springs, are core elastic parts optimized for bearing axial tensile force and elastic recovery. Different from compression springs, their coils are tightly wound without gaps in the free state, and they rely on tensile deformation to generate uniform and stable rebound force. Equipped with various hook structures at both ends for convenient installation and clamping, these springs feature high tensile sensitivity, stable elastic recovery performance and strong deformation reset capability. They are predominantly adopted in mechanical reset mechanisms, tension clamping systems and automatic rebound structures. 

Applications: Mechanical tensioning, automatic component resetting, elastic clamping and pulling structures. They are universally used in general machinery, daily hardware and automation equipment, with limited application in standard static fastener locking assemblies.

Small Compression Spring for Electronic Device
Small Batch Custom Spring Fastener
Industrial Machinery Compression Spring
Custom Torsion Spring China Manufacturer
OEM Tension Spring Supplier
Custom Wire Spring for New Energy Equipment
Custom Made Compression Spring Manufacturer
Galvanized Compression Spring

How to Customize Exclusive Springs in GD Fastenal

We GD Fastenal simplify the entire spring customization process to deliver a hassle-free experience for every client. There is no complicated procedure or professional jargon required. Simply provide us with your key product specifications and working condition requirements, and our professional team will promptly complete accurate quotation and arrange mass production efficiently to meet your demands.

 Fastener Spring TypeCompression Spring, Extension Spring, Torsion Spring, Belleville Disc Spring, Wave Springs,Wave Spring Sashers, Spring Lock Wahsers, Circlips & Snap Rings, Stamped Elastic Springs & Special Elastic Components.
SizeWire diameter (thicker wire means a stronger spring, so just go with what force you need), outer diameter (has to fit the space where you’ll put the spring), free length (how long the spring is when it’s not being pushed or pulled), and total coils (this affects how much the spring can stretch or compress).​
  Material Pick from stuff like carbon steel (great for regular, everyday use—tough enough to last), stainless steel 316 (total pro at fighting rust, perfect if it’s gonna be in humid spots or around chemicals), or titanium alloy (lightweight but surprisingly strong, ideal for gear that needs top performance).​
Surface Treatment We offer a full range of professional surface treatment options to enhance spring performance and durability. Electrophoresis treatment forms a smooth, uniform protective coating on spring surfaces, making it ideal for indoor mechanical equipment applications. Powder coating delivers exceptional toughness and superior scratch resistance, perfectly suited for springs equipped on outdoor tools and exposed machinery. Nickel plating effectively strengthens rust and corrosion resistance while creating a sleek, neat surface finish, which is the optimal choice for precision mechanical equipment springs.
 Other Special Requirements We also accommodate all kinds of customized special requirements to suit your unique application scenarios. This includes temperature-resistant springs that can withstand extreme high and low temperatures, applicable for industrial ovens, freezing equipment and other harsh working environments. We also support custom brand-matching colors and irregular special-shaped spring designs, perfectly tailored to your exclusive equipment and personalized design demands.

Where Springs Actually Applied to

Choose the right spring isn’t just about matching force and stretch—it’s what keeps the whole machine safe, running smooth, and from breaking down too soon.As a springs manufacturer in China, the springs we produce can be used in many fields. GD Fastenal springs are widely used in different fields, such as Industrial, Auto, Motorcycle, Electronics, Electric power, Toys, Sports goods, Machinery equipment, etc. 

Spring Clip for Motorcycle Parts
Spring Clip for Electronics
Torsion Spring for Motorcycle Parts

FAQ of Custom Springs

A: We produce a full range of industrial springs, including compression, extension, torsion, and die springs, as well as custom wire forms. All products can be tailored in terms of wire diameter, outer diameter, free length, and load capacity to meet your specific application requirements.

A: We work with various high-grade materials, including standard carbon steel (music wire), stainless steel (304, 316, 17-7PH) for corrosion resistance, and alloy steels (55CrSi, 60Si2Mn) for heavy-duty applications. For extreme environments, we offer superalloys like Inconel and Hastelloy. Our engineering team can help you select the optimal material based on your operating temperature, working environment, and stress requirements.

A: Yes, absolute customizability is our core strength. You can send us CAD files (STEP, IGES, PDF) or physically mail us a sample. Our engineering team will analyze the specifications, create a precise production model, and send a sample for your approval before mass production.

A: To ensure maximum durability and corrosion resistance, we provide multiple finishing options, including zinc plating (white, yellow, black), passivation, black oxide, powder coating, electro-coating (e-coat), and Dacromet/Geomet coatings for high salt-spray resistance.

A: For standard in-stock items, the MOQ is 1,000 pcs. For custom designs, our MOQ typically ranges from 1,000 to 5,000 pcs depending on the dimensions and material. Sample lead time is usually 5–7 working days, while bulk production takes 15–20 days after sample approval and deposit confirmation.

A: Every batch undergoes strict Quality Assurance in compliance with ISO 9001 standards. We perform rigorous testing—including tensile and load testing, fatigue life analysis, spring rate measurement, and salt spray testing for surface treatment—and provide full Material Test Certificates (MTC) and Inspection Reports prior to shipment.

Specialty and Made to Order

Send us your drawings or requirements of fastener spring today, and our engineering team will provide you with the best solution at competitive prices. From standard OEM requests to highly specialized designs, we turn customer drawings and requirements into high-quality fastening solutions.