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  • M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger
  • M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger
  • M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger
  • M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger
  • M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger
  • M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger
M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger

M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger

  • 1000 - 4999 Pieces
    $0.15
  • >= 5000 Pieces
    $0.10

Customization:

Customized logo（Min.Order: 5000 pieces）
Customized packaging（Min.Order: 5000 pieces）
Graphic customization（Min.Order: 5000 pieces）
View product details

M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Motion Control: Equipped with ball bearings and threaded design, these screws enable smooth, low-friction linear motion for precise positioning in mechanical systems.
  • Versatile Thread Compatibility: Available in M3 and M4 thread sizes, suitable for securing components in tight spaces or high-load applications.

Key features

  • 1. Material Technology

    • With a black oxide finish and corrosion-resistant stainless steel construction, you can ensure durability in harsh industrial environments. The black oxide coating provides enhanced resistance to wear and oxidation compared to untreated steel, extending service life in demanding applications.

  • 2. Interactive Design

    • With the hexagonal socket design, you can achieve quick and precise installation using standard hex wrenches. This ergonomic feature simplifies assembly and adjustment, streamlining integration into machinery or robotic systems.

  • 3. Performance Parameters

    • With precision-engineered M3/M4 threads, you can achieve high-accuracy positioning in automated systems. The tight tolerances and smooth rotation enabled by ball bearings ensure consistent performance in linear motion applications.

  • 4. Scenario Solutions

    • Designed for industrial and robotic applications, you can ensure smooth operation in high-stress environments. The ball-bearing mechanism reduces friction, making it ideal for continuous use in machinery, automation, and precision engineering.

  • 5. Certification Standards

    • Constructed with certified corrosion-resistant materials (stainless steel and black oxide treatment), you can meet industry standards for durability and safety in food-grade or outdoor equipment.

Product details

M3 M4 Black Oxide Spring Ball Bearing Spring Threaded Screw Plunger

The M3/M4 Black Oxide Spring Ball Bearing Screw Plunger combines precision engineering with durable materials, designed for high-performance linear motion applications. Featuring black oxide finish and corrosion-resistant materials, these screws are ideal for machinery, robotics, and automation systems requiring smooth, low-friction operation.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialCarbon Steel / Stainless SteelHeavy-duty machinery, corrosive environments
FinishBlack OxideEnhanced corrosion resistance in humid conditions
Thread SizesM3, M4Precision adjustments in compact spaces
Hexagonal SocketIntegrated designEasy installation with standard hex tools
Ball Bearing DesignCeramic/Stainless Steel BallsSmooth, low-friction motion in automated systems

Customization guide

Adjustable parameters include thread pitch, diameter tolerance, and material composition to meet specific load requirements or environmental conditions. For example, customizing the thread pitch can optimize speed and torque in robotics applications.

Get inspired

With their compact design and precise ball bearing mechanism, these plungers enable reliable linear motion in tight spaces. Ideal for applications like CNC machines, medical devices, or industrial automation where accuracy and durability are critical.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Load Capacity500 N+20% (600 N)+40% (700 N)*
Precision±0.02 mm±0.01 mm±0.005 mm
Corrosion ResistanceStainless SteelBlack Oxide + ZincCeramic Coating
Max Speed1.5 m/s2.0 m/s2.5 m/s

Supplier's note

  1. Technical Breakthroughs:

    • Black Oxide Finish: Reduces friction by 15% compared to uncoated steel, extending lifespan in high-wear environments.
    • Hexagonal Socket: Enables 20% faster installation than slotted designs, reducing downtime.
    • Ceramic Balls: Triple the hardness of steel bearings, ideal for abrasive conditions.

  2. Version Selection Guide:

    • Base Model: Suitable for general industrial use (e.g., standard machinery).
    • Advanced Model: Optimal for robotics and automation requiring higher precision and corrosion resistance (e.g., food processing).
    • Pro Model: Designed for extreme applications like aerospace or marine systems, where ultra-high load capacity and chemical resistance are critical.

Pro Model’s ceramic coating provides 50% better corrosion resistance than industry benchmarks, ensuring reliability in saltwater environments. Pair it with stainless steel material for seamless integration into marine automation systems.

Frequently asked questions

  • Which M3 vs M4 ball screw plunger is best for precision machinery applications?

  • How do I maintain the black oxide finish on spring ball bearing screws?

  • What materials are used in M3/M4 spring ball screws, and how do they compare?

  • Can M3/M4 ball screws be customized for non-standard thread pitches?

  • Are these spring plunger screws FDA-approved for food-grade equipment?

  • Why choose spring ball bearing screws over standard threaded plungers?

  • Which industries benefit most from M3/M4 spring plunger screws?

  • Does the black oxide coating affect the screw’s load-bearing capacity?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial machinery in corrosive environmentsIndustry Standard: Carbon Steel (ASTM A36)
Our Base: Carbon Steel (ASTM A36)
Our Advanced: Stainless Steel 304 (Corrosion Resistance: 500+ hours salt spray test ▲)		Base: Cost-effective for standard environments.
Advanced: ▲ Superior corrosion resistance in harsh conditions.		Base: Prone to rust without coating.
Advanced: ▲▲ Higher cost due to premium material.
Thread SpecificationsPrecision machinery requiring tight tolerancesIndustry Standard: M3/M4 Threads (ISO 965-1 Class 6g)
Our Base: M3/M4 Threads (ISO 965-1 Class 6g)
Our Advanced: M3/M4 Threads (ISO 965-1 Class 5g ▲)		Base: Meets standard precision.
Advanced: ▲ Enhanced precision for high-accuracy systems.		Base: Limited for ultra-precise applications.
Advanced: ▲▲ Requires specialized machining.
Surface FinishOutdoor equipment exposed to moistureIndustry Standard: Uncoated Steel
Our Base: Black Oxide Coating (Salt Spray Resistance: 720 hours ASTM B117)
Our Advanced: Black Oxide + Zinc Plating (Salt Spray Resistance: 1000 hours ▲▲)		Base: Improved corrosion resistance over uncoated.
Advanced: ▲▲ Even better protection against corrosion.		Base: Less durable than dual coatings.
Advanced: ▲▲ Additional cost for dual-layer treatment.
Load CapacityHeavy-duty robotic armsIndustry Standard: 5000 Nmm
Our Base: 6000 Nmm ▲
Our Advanced: 8000 Nmm ▲▲		Base: 20% higher load capacity than standard.
Advanced: ▲▲ 60% higher load capacity for extreme applications.		Base: Not suitable for maximum loads.
Advanced: ▲▲ Bulky design may limit space.
Precision GradeCNC machines needing minimal backlashIndustry Standard: Class 5 (Radial Runout: 0.015mm)
Our Base: Class 5
Our Advanced: Class 3 (Radial Runout: 0.008mm ▲)		Base: Standard precision for most industrial uses.
Advanced: ▲ Twice as precise for ultra-accurate systems.		Base: Not ideal for high-end precision.
Advanced: ▲▲ Higher cost due to tighter tolerances.
Noise LevelMedical equipment in quiet environmentsIndustry Standard: 45 dBA (Lawnmower)
Our Base: 42 dBA (Quiet Fridge ▲)
Our Advanced: 38 dBA (Library Whisper ▲▲)		Base: ▲ 3 dB quieter than standard.
Advanced: ▲▲ 7 dB quieter for silent operation.		Base: Still audible in very quiet settings.
Advanced: ▲▲ Complex design increases maintenance.

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