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  • Short Type Micro Spring Plunger Pins with Flat Collar
  • Short Type Micro Spring Plunger Pins with Flat Collar
  • Short Type Micro Spring Plunger Pins with Flat Collar
  • Short Type Micro Spring Plunger Pins with Flat Collar
  • Short Type Micro Spring Plunger Pins with Flat Collar
  • Short Type Micro Spring Plunger Pins with Flat Collar
Short Type Micro Spring Plunger Pins with Flat Collar

Short Type Micro Spring Plunger Pins with Flat Collar

$0.18-$0.25/ Piece|500 Piece/Pieces(Min. Order)
View product details

Short Type Micro Spring Plunger Pins with Flat Collar

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Alignment & Securing: Designed to provide secure fastening and precise alignment in compact mechanical systems, ensuring stability in applications requiring minimal clearance.
  • Spring-Loaded Mechanism: The micro plunger pin with a flat collar allows for adjustable positioning and automatic retraction, enabling repeated use in dynamic environments.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

    • With corrosion-resistant stainless steel construction, ensure longevity in harsh environments. ~30% more corrosion-resistant than standard steel models*.

  • 2. Precision-Engineered Alignment Design

    • With a precision-machined alignment pin and flat collar, enable secure positioning and effortless installation. 50% faster installation compared to generic plungers*.

  • 3. High-Load Capacity Performance

    • With a rated load capacity of 500N, outperform conventional plungers by 40% in heavy-duty applications*.

  • 4. Versatile Industrial Application Solutions

    • Designed for industrial machinery and automotive parts, providing reliable operation in high-vibration environments versus generic fasteners*.

  • 5. Compliance with International Material Standards

    • Constructed to ASTM A240 specifications for corrosion resistance and durability, ensuring compliance with global quality benchmarks*.

Product details

Short Type Micro Spring Plunger Pins with Flat Collar

The Short Type Micro Spring Plunger Pins with Flat Collar are precision-engineered fasteners designed for secure, adjustable positioning in machinery and equipment. Crafted from durable stainless steel or steel, these components feature a cylindrical body with a flat collar and a spring-loaded pin, ensuring reliable performance in dynamic applications. Their compact design and corrosion-resistant material make them ideal for industrial, automotive, and mechanical systems requiring precise alignment or retention.

Technical specifications

FeatureSpecificationBenefit
MaterialStainless Steel / SteelHigh corrosion resistance and structural durability
Surface TreatmentStainless Steel FinishEnhanced resistance to environmental wear
DesignCylindrical body with flat collarSecure mounting and alignment in tight spaces
Spring MechanismMicro spring-loaded plungerAdjustable positioning with consistent tension
Precision Tolerance±0.01mm (standard)Ensures exact fit in precision machinery

Customization guide

Adjustable parameters include:

  • Material: Swap stainless steel for aluminum (lightweight) or hardened steel (high-load applications).
  • Dimensions: Modify length, diameter, or collar size to fit custom machinery specs.
  • Surface Finish: Opt for matte (anti-slip) or polished (aesthetic) treatments.

Get inspired

With their compact form and spring-loaded mechanism, these plungers excel in applications like machinery alignment, tool retention, or modular assembly systems. Their corrosion-resistant design ensures longevity in harsh environments, while precise tolerances guarantee seamless integration into automated equipment.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Load Capacity100N+15% (115N)+30% (130N)*
Corrosion ResistanceASTM A260 Grade 2ASTM A260 Grade 3ASTM A260 Grade 4
Precision Tolerance±0.01mm±0.008mm±0.005mm
MaterialSteelStainless Steel 304Stainless Steel 316

Supplier's note

  1. Technical Breakthroughs:

    • Material Options: The Pro Model’s 316 stainless steel provides 40% better corrosion resistance than Base Model steel, ideal for marine or chemical environments.
    • Precision Tolerance: Advanced and Pro Models achieve tighter tolerances (+15% and +30% improvement, respectively), enabling use in high-precision robotics and medical devices.
    • Customizable Spring Force: Users can adjust spring preload to balance retention strength and ease of actuation.

  2. Optimal Version Selection:

    • Base Model: Suitable for general industrial applications (e.g., conveyor belts) where cost efficiency is prioritized.
    • Advanced Model: Best for machinery requiring corrosion resistance (e.g., food processing) and moderate precision.
    • Pro Model: Tailored for extreme environments (e.g., aerospace, chemical plants) where durability and ultra-precision are critical.

Example Use Case: With the Pro Model’s 316 stainless steel and ±0.005mm tolerance, users can ensure seamless operation in corrosive chemical pumps while maintaining alignment accuracy. Pairing its high load capacity with a custom collar size enables secure retention in heavy-duty robotics.

Frequently asked questions

  • Which Short Type Micro Spring Plunger Pins model is best for small machinery applications?

  • Stainless Steel vs Steel Plunger Pins: Which is better for corrosive environments?

  • How do I clean and maintain Micro Spring Plunger Pins to prevent corrosion?

  • Can I customize the material and dimensions of plunger pins for my project?

  • Are these plunger pins certified to meet industrial standards?

  • What makes these plunger pins suitable for electronics assembly?

  • Can the surface finish of the plunger pins be customized for specific uses?

  • How does the spring mechanism ensure reliability in high-vibration machinery?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material GradeIndustrial machinery, automotive partsIndustry Standard: Carbon Steel (ASTM A36)
Our Base: Stainless Steel 304 (ASTM A240)
Our Advanced: Stainless Steel 316 (ASTM A276)		▲ Our Advanced resists seawater corrosion (30% better than 304)
High durability		▲ Advanced: 20% higher cost due to premium alloy composition
Load CapacityRobotics, precision instrumentsIndustry Standard: 50N (ISO 7804)
Our Base: 100N (ISO 7804)
Our Advanced: 150N (ISO 7804)		▲ Our Advanced supports heavier loads (e.g., industrial robotics arms)▲ Base: Limited to light-duty applications like electronics
Corrosion ResistanceMarine equipment, food processingIndustry Standard: Passivation (ASTM A967)
Our Base: Passivation + 24hr salt spray (ASTM B117)
Our Advanced: Passivation + 72hr salt spray (ASTM B117)		▲ Our Advanced withstands harsh environments (e.g., offshore machinery)▲ Industry Standard: Prone to rust in humid conditions
Installation EaseAssembly lines, quick-install systemsIndustry Standard: Standard hex head
Our Base: Tapered sleeve (ISO 13399)
Our Advanced: Tapered sleeve + magnetic alignment		▲ Our Advanced reduces misalignment by 40% (ideal for automated assembly)▲ Industry Standard: Requires manual torque calibration
Noise LevelOffice equipment, medical devicesIndustry Standard: 45 dBA (ISO 140-9)
Our Base: 40 dBA (ISO 140-9)
Our Advanced: 35 dBA (ISO 140-9)		▲ Our Advanced quieter than a whisper (ideal for sensitive environments)▲ Industry Standard: Audible in quiet settings like labs
Surface FinishAesthetic applications, cleanroomsIndustry Standard: Matte finish
Our Base: Polished (Ra ≤0.8 µm, ISO 1302)
Our Advanced: Electropolished (Ra ≤0.4 µm, ISO 1302)		▲ Our Advanced minimizes microbial growth (critical for medical devices)▲ Base: Higher friction in high-vibration setups

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