All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Alibaba
Tools & Hardware
Fasteners
Screws
  • Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws
  • Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws
  • Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws
  • Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws
  • Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws
  • Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws
Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws

Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws

  • 1000 - 4999 Pieces
    $0.03
  • 5000 - 9999 Pieces
    $0.02
  • >= 10000 Pieces
    $0.01

Customization:

Customized logo（Min.Order: 10000 pieces）
Customized packaging（Min.Order: 10000 pieces）
Graphic customization（Min.Order: 10000 pieces）
View product details

Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Support & Load Distribution: Designed with a cylindrical shoulder to evenly distribute load and protect underlying materials (e.g., wood, plastic, metal) from indentation during installation.
  • High-Strength Fastening: Manufactured from alloy steel (Grade 12.9) and stainless steel (304), ensuring exceptional durability, corrosion resistance, and ability to withstand high pressures and temperatures.

Key features

  • 1. Material Technology

    • With alloy steel grade 12.9 and 304 stainless steel, you can achieve 40% higher tensile strength than standard steel bolts*, ensuring durability in heavy-duty industrial applications. The cadmium-plated, zinc-flake coated, or chrome-plated finishes further enhance corrosion resistance, outperforming uncoated fasteners in harsh environments.

  • 2. Interactive Design

    • With the hexagonal head and cylindrical shoulder design, you can easily tighten/loosen the bolt using standard tools while distributing load evenly across surfaces*. The shoulder prevents material indentation in softer substrates like plastic or wood, reducing damage compared to flat-head screws.

  • 3. Performance Parameters

    • With thread sizes ranging from M3 to M10 and metric/inch compatibility, you can fit diverse applications in machinery, automotive, and construction*. The ISO 7379 standard ensures precision threading for seamless integration into global manufacturing systems.

  • 4. Scenario Solutions

    • With a corrosion-resistant shoulder design, you can secure components in corrosive or high-pressure environments (e.g., marine equipment or industrial machinery)*. The customizable lengths (9mm–25mm) and material options (alloy steel, titanium, plastic) adapt to specialized needs, unlike one-size-fits-all fasteners.

  • 5. Certification Standards

    • With RoHS compliance, you can meet global environmental and safety regulations for electronics and automotive industries*, avoiding restricted substances found in non-certified alternatives.

Product details

Custom Alloy Steel Grade 12.9 Shoulder Bolt Hexagon Plug Screw ISO 7379 Special Shoulder Bolts Screws

Custom Alloy Steel Grade 12.9 Shoulder Bolts are engineered for precision and durability in industrial and mechanical applications. Featuring a hexagonal head and cylindrical shoulder design, these screws ensure secure fastening while protecting workpiece surfaces. Available in multiple materials, finishes, and sizes, they comply with global standards like ISO 7379 and are RoHS-certified for environmental safety.

Technical specifications

FeatureSpecificationBenefit
MaterialAlloy Steel Grade 12.9, Stainless Steel (304), Titanium, Brass, etc.High tensile strength (1220 MPa) and corrosion resistance for heavy-duty use
FinishCadmium Plated, Black Oxide, Zinc-Flake Coated, Chrome Plated, etc.Enhanced corrosion resistance and aesthetic appeal
Length9mm to 25mm (customizable)Adaptable to fit diverse application depths
Thread SizeM3, M5, M6, M8, M10Compatibility with standard and specialized machinery components
Standard ComplianceISO 7379, JIS, DIN, GB, Inch/Metric SystemsGlobal compatibility and quality assurance
CertificationRoHS CertifiedEnvironmentally safe for industrial and consumer applications
Application ScenarioMachinery assembly, automotive parts, robotics, and structural engineeringSecure fastening in dynamic load environments

Customization guide

Adjustable parameters include length (from 9mm to 25mm) and thread size (M3–M10) to meet specific mechanical tolerances. Choose from finishes like zinc-flake coating for marine environments or blue anodizing for high-temperature applications.

Get inspired

With their robust alloy steel core and customizable shoulder length, these bolts excel in applications requiring precise load distribution. Whether securing engine components in automotive systems or stabilizing robotic joints, their corrosion-resistant coatings ensure longevity even in harsh conditions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Tensile Strength1000 MPa+15% (1150 MPa)*+30% (1300 MPa)*
Corrosion ResistancePlain FinishZinc-Aluminum CoatedChrome Plated (ISO 1454)
Temperature Range-20°C to 150°C-30°C to 200°C-40°C to 250°C
Thread PrecisionClass 6GClass 5GClass 4G

Supplier's note

  1. Technical Breakthroughs:

    • Alloy Steel Grade 12.9: Delivers 20% higher tensile strength than standard bolts, enabling use in high-stress machinery.
    • Multi-Finish Options: Chrome-plated Pro models offer 3x longer corrosion resistance than uncoated bolts in saline environments.
    • Customizable Shoulder Length: Allows precise surface clearance adjustments for delicate material surfaces.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard workshop applications (e.g., assembling metal frames) where cost-efficiency is prioritized.
    • Advanced Model: Suitable for automotive and outdoor equipment requiring enhanced corrosion resistance (e.g., marine machinery).
    • Pro Model: Recommended for aerospace and heavy industrial use cases needing extreme durability (e.g., engine mounts in high-temperature zones).

Example Use Case: With the Pro Model’s triple-certified chrome plating, you can safely secure hydraulic components in chemical plants, where corrosive fluids would degrade inferior materials. Pair its 1300 MPa strength with a M10 thread to handle high-pressure systems.

Frequently asked questions

  • Which shoulder bolt model is best for high-strength industrial machinery applications?

  • How do I maintain cadmium-plated shoulder bolts to prevent corrosion in humid environments?

  • Alloy steel vs stainless steel shoulder bolts: Which suits corrosive chemical processing equipment?

  • Can I customize thread size and length for specialized machinery assembly?

  • Are your shoulder bolts RoHS certified for use in EU industrial equipment?

  • What’s the difference between zinc-plated and black oxide finishes for outdoor machinery?

  • Which shoulder bolt finish resists abrasion in abrasive manufacturing processes?

  • Why choose hexagon head shoulder bolts for equipment assembly?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
MaterialHeavy machinery in corrosive environmentsIndustry Standard: 304 Stainless SteelOur Base: Alloy Steel Grade 8.8 (640 MPa yield strength)Our Advanced: Alloy Steel Grade 12.9 ▲▲ (1,220 MPa yield strength)
(ISO 6892-1 certified)
Enhanced durability for industrial applicationsHigher cost for Advanced material
Surface FinishOutdoor equipment exposed to moistureIndustry Standard: Zinc Plated (ASTM B695)Our Base: Zinc-Flake Coated ▲ (1,000hr salt spray resistance)Our Advanced: Cadmium Plated ▲▲ (Military Grade MIL-DTL-81706)
(RoHS-compliant coating)
Improved corrosion resistance vs BaseCadmium requires special disposal (not for EU RoHS-only projects)
Thread Size VarietyCustom assembly projectsIndustry Standard: Common sizes (M3-M10)Our Base: Full ISO 7379 range (M3-M10) ▲Our Advanced: Custom sizes ▲▲ (e.g., M12, M16)
(Tolerance: ISO 2768-m)
Meets most standard needsAdvanced requires 2-week lead time for non-standard sizes
Length CustomizationDeep mounting in thick materialsIndustry Standard: ≤25mm maxOur Base: Up to 50mm ▲ (ISO 2768-m precision)Our Advanced: Up to 100mm ▲▲ (ISO 2768-f precision)
(±0.1mm tolerance)
Suits medium-depth applicationsAdvanced may reduce torsional strength in extreme lengths
Certification ComplianceEU market exportsIndustry Standard: Basic complianceOur Base: RoHS Certified ▲ (IEC 62321)Our Advanced: RoHS + REACH ▲▲ (EU Regulation 1907/2006)
(Full chemical safety dossier)
Meets baseline EU requirementsAdvanced adds 15% cost for REACH documentation
Global Standards AdherenceInternational projectsIndustry Standard: Single standard (e.g., ISO)Our Base: ISO/DIN/JIS ▲ (ISO 7379, DIN 931, JIS B 1101)Our Advanced: ISO/DIN/JIS/GB ▲▲ (GB/T 819-2003)
(Full multi-regional compatibility)
Simplifies procurement across Asia/EuropeAdvanced requires dual-testing for multi-standard compliance

Related searches

flower wax machineeczema cream skin itching cream fungalafro wave toupeesublimation printer machinelotion refillable cosmetic packagingcosmetic packagingcream tubesignal jamer wireless rf modulesheavy duty folding caneRolling Mill Bearingironing board cover fabric elastic bandsilicone soap moldoutdoor metal parcel boxlift top coffee tablesun louver blades sun louver bladesoutdoor statue angel wings metal sculpturelord of ring frodo sting

The Product Description is generated by third-party, and Alibaba.com is not liable for any risks related to inaccuracies or the infringement of third-party rights.

The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.

The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.