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Compression Springs SINEKY 304 Stainless Steel Spring Size 0.4x5x15mm-0

Compression Springs SINEKY 304 Stainless Steel Spring Size 0.4x5x15mm

Price range: $6.17 through $6.30
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METALLIXITY Compression Springs (1x8mm OD,305mm Free Length) 2Pcs, 304 Stainless Steel Extension Spring – for Shop Home Repairs, DIY Projects, Silver Tone

Original price was: $8.19.Current price is: $7.86.
METALLIXITY Compression Springs (1x8mm OD,305mm Free Length) 2Pcs, 304 Stainless Steel Extension Spring - for Shop Home Repairs, DIY Projects, Silver Tone-0

Compression Springs Kit 390pcs 24 Sizes Stainless Steel SENMULIN

Original price was: $15.99.Current price is: $15.51.

The SENMULIN Compression Springs Assortment Kit provides 390 high‑quality stainless steel springs in 24 distinct sizes, perfect for a wide range of home and workshop repairs. Each spring is made from anti‑rust 304 stainless steel, packaged in labeled plastic boxes for easy identification and storage. Whether you’re fixing doors, curtains, bicycles, or electronic equipment, this versatile kit ensures you have the right spring on hand.

9999 in stock
SKU: CJ2SN3B0BBQL Category:
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Description

Product Overview

The SENMULIN Compression Springs Assortment Kit is engineered to meet the demanding needs of both hobbyists and professional technicians. Containing 390 individual springs, the kit offers 24 distinct size variations, each precisely machined from premium 304 stainless steel wire. This material choice guarantees exceptional resistance to corrosion, oxidation, and acidic environments, making the springs suitable for humid workshops, outdoor applications, and even marine settings. The springs are organized in sturdy, reusable plastic storage boxes, each compartment clearly labeled with the wire diameter, outer diameter, and free length specifications, allowing quick identification and selection during any repair task.

Every spring in the collection has been subjected to rigorous quality control procedures, including dimensional verification, load testing, and surface finish inspection. The result is a reliable component that maintains its mechanical properties over thousands of compression cycles. The kit’s comprehensive size range covers wire diameters from 0.018 inches up to 0.050 inches, outer diameters from 0.0197 inches to 0.080 inches, and free lengths ranging from 0.394 inches to 0.984 inches, providing the flexibility needed for a multitude of mechanisms such as door hinges, curtain tracks, bicycle suspensions, piano actions, and electronic device enclosures.

Designed with user convenience in mind, the packaging includes a clear, printed diagram that maps each spring size to its corresponding box slot. This visual aid reduces the time spent searching for the correct component, especially in fast‑paced repair environments. The compact dimensions of the overall kit—7.4 x 5.12 x 0.75 inches—allow it to fit comfortably on a workbench, in a tool chest, or on a shelf, while the total weight of just 6.74 ounces ensures easy portability for field service technicians.

The kit also addresses safety considerations. The stainless steel composition eliminates the risk of rust‑related contamination, which can be critical in applications involving food processing equipment or medical devices. Additionally, the springs are free from hazardous coatings or lubricants, complying with common occupational health standards. By providing a ready‑to‑use assortment, SENMULIN reduces the need for users to purchase individual springs, thereby minimizing inventory costs and simplifying supply chain management.

Overall, the Compression Springs Assortment Kit delivers a blend of durability, precision, and convenience that supports a broad spectrum of repair and maintenance activities. Its high customer rating of 4.6 stars out of 5, based on over 300 reviews, reflects the confidence that professionals place in this product for reliable performance across diverse applications.

[Product front view showing all components]

Usage

The versatility of this spring kit makes it an indispensable resource for DIY enthusiasts, automotive mechanics, and industrial maintenance crews alike. In residential settings, the springs can be employed to restore the tension in window blinds, replace worn door latch mechanisms, or adjust the balance of garage door counterweights. Their corrosion‑resistant nature ensures long‑term operation even in bathrooms or kitchens where humidity is prevalent.

For automotive repairs, the assortment includes sizes suitable for clutch release mechanisms, fuel pump diaphragms, and suspension components. Technicians can quickly select the appropriate spring to match OEM specifications, reducing downtime and improving vehicle reliability. The labeled storage system also aids in maintaining an organized workshop, preventing mix‑ups that could lead to incorrect installations.

In the realm of electronics and precision equipment, the springs serve as reliable biasing elements for switches, relays, and sensor housings. Their consistent spring rate and low hysteresis contribute to accurate device performance, while the stainless steel construction prevents conductive contamination that could affect sensitive circuitry. Hobbyists building custom robotics or drones will find the kit especially valuable for fine‑tuning actuator responses.

Outdoor and marine applications benefit from the kit’s anti‑rust properties. Whether securing a boat hatch, adjusting a camping gear tensioner, or reinforcing a garden gate, the springs maintain their elasticity despite exposure to saltwater spray or fluctuating temperatures. The compact packaging also makes it easy to transport the kit to remote job sites, ensuring that the right component is always on hand.

The kit’s user‑friendly design encourages educational use as well. In technical training programs, instructors can demonstrate fundamental principles of spring mechanics, load distribution, and material science using real‑world examples drawn from the assortment. Students gain hands‑on experience selecting the correct spring based on dimensional data, fostering a deeper understanding of mechanical design.

Why Choose Us

SENMULIN’s reputation for manufacturing high‑quality mechanical components is reinforced by this comprehensive spring assortment. Each spring is produced using CNC‑controlled winding equipment that ensures uniform coil spacing and consistent wire tension, resulting in predictable performance across the entire size range. The precision manufacturing process is complemented by a multi‑stage heat treatment that enhances fatigue resistance and stabilizes the spring’s elastic properties.

Quality assurance is a cornerstone of the product development cycle. Before packaging, every spring undergoes a series of tests, including dimensional verification with micrometer accuracy, load‑deflection analysis to confirm spring constant values, and surface inspection to detect any imperfections or burrs. Springs that fail to meet the stringent criteria are removed from the batch, guaranteeing that only top‑grade components reach the customer.

Customer support extends beyond the point of sale. SENMULIN provides detailed technical documentation, including a size chart, load tables, and installation guidelines, accessible through their website. Should users encounter any issues or require assistance in selecting the optimal spring for a specific application, a dedicated support team is available via email or phone to offer expert advice and troubleshooting.

The environmental responsibility of the brand is reflected in the choice of 304 stainless steel, a recyclable material that reduces the ecological footprint of the product. Packaging is designed to be minimal yet protective, using recyclable plastics and avoiding unnecessary filler material. This commitment to sustainability resonates with customers who prioritize eco‑friendly solutions in their procurement decisions.

Finally, the competitive pricing of the kit delivers exceptional value. By consolidating 390 springs into a single package, SENMULIN eliminates the need for multiple individual purchases, lowering overall costs for both small‑scale hobbyists and large‑scale maintenance departments. The combination of durability, precision, and affordability positions the kit as a cost‑effective solution for a wide array of mechanical challenges.

Key Features

  • Premium 304 stainless steel construction provides superior corrosion resistance for long‑lasting performance.
  • 24 distinct spring sizes cover a broad range of applications, from light household fixes to heavy‑duty industrial tasks.
  • Each spring is labeled and stored in a durable plastic box, enabling quick identification and organized storage.
  • Precision‑engineered dimensions ensure consistent load capacity and reliable compression behavior.
  • Dedicated customer support and detailed technical documentation help users select and install the right spring every time.

FAQ

What is the difference between the 24 spring sizes?

The sizes vary by wire diameter, outer diameter, and free length. These dimensions determine the spring’s load capacity and compression range, allowing you to match the spring to the specific force and travel requirements of your project.

Can these springs be used in high‑temperature environments?

Yes. The 304 stainless steel material retains its mechanical properties up to approximately 870°F (465°C), making the springs suitable for many high‑temperature applications, provided they are not exposed to extreme thermal shock.

How do I determine which spring size I need for a particular repair?

Start by measuring the required free length and the space available for the spring’s outer diameter. Then consult the included size chart, which lists the corresponding wire diameter and load rating for each size. If additional guidance is needed, SENMULIN’s support team can assist with calculations.

Are the springs compatible with standard mechanical assemblies?

All springs are designed to meet common industry standards for compression springs. They can be integrated into existing assemblies without modification, provided the mounting holes or slots accommodate the listed dimensions.

What warranty does SENMULIN offer for this kit?

The kit comes with a one‑year limited warranty covering manufacturing defects. If a spring fails due to a material or workmanship issue within this period, SENMULIN will replace the affected component at no cost to the customer.

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