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M9x78mm Aluminum 6061 Hex Cap Screw | Fastener

Expert Overview

This M9x78mm Hex Head Cap Screw, crafted from high-strength Aluminum 6061, offers exceptional corrosion resistance and a lightweight profile. It's engineered for reliable fastening in critical applications where performance and durability are paramount.

StandardISO 9001
MaterialAluminum 6061
FinishAnodized
GradeN/A
SizeM9
Length78mm
Head Width30mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M9x78mm Hex Head Cap Screw boasts a robust Aluminum 6061 construction, renowned for its excellent strength-to-weight ratio and superior corrosion resistance, particularly in marine and outdoor environments. The M9 thread size ensures secure engagement, while the 78mm length and 30mm head width provide ample bearing surface and torque application. This material's machinability and anodizing capabilities make it ideal for applications requiring both structural integrity and aesthetic finish, such as in aerospace, automotive, and custom fabrication projects.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

BossardEst. 1831
Switzerland🇨🇭
"Global leader in fastening technology."
Market Rank
🏆 Top 3 Global Fastener Network
Industry Approvals
🚀 Aerospace & Tesla Approved
Warranty & Support
🛡️ Lifetime Traceability
Green Manufacturing
🌱 Carbon Neutral by 2030
Certified:ISO 9001, RoHS, REACH
Würth GroupEst. 1945
Germany🇩🇪
"Premium assembly and fastening materials."
Market Rank
🏆 #1 Global Assembly Supplier
Industry Approvals
🚀 VW & BMW OEM
Warranty & Support
🛡️ 5-Year Industrial Warranty
Green Manufacturing
🌱 100% Recyclable Packaging
Certified:ISO 9001, DIN EN
Brighton-BestEst. 1925
USA🇺🇸
"Master distributor of industrial fasteners."
Market Rank
🏆 Largest Distributor in NA
Industry Approvals
🚀 Boeing Approved
Warranty & Support
🛡️ Global Replacement Guarantee
Green Manufacturing
🌱 Green Steel Initiative
Certified:ISO 9001, A2LA

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:N/A

Installation Procedure

1. Ensure the mating threads are clean and free of debris. 2. Hand-thread the cap screw to confirm proper alignment and engagement. 3. Using an appropriate wrench or socket, tighten the cap screw to the recommended torque specification for Aluminum 6061 fasteners, avoiding over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°C)
Thermal Expansion
Typical for Material Class

Recommended Torque Values

Bolt SizeDry Torque (ft-lbs)Lubricated Torque (ft-lbs)
M9Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M9Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening which can strip threads or deform the material.Utilize a torque wrench set to the appropriate specification for aluminum fasteners to prevent damage.
Using the wrong tool, leading to damaged hex head or stripped threads.Employ a properly sized, high-quality socket or wrench that fits the hex head snugly.

Common Applications

  • Aerospace components requiring lightweight, high-strength fasteners.
  • Marine equipment and structures where corrosion resistance is critical.
  • Custom automotive builds and performance enhancements.

⚠️ Engineering Warnings

  • Aluminum 6061 has a lower tensile strength than steel; ensure it meets the load requirements of your application.
  • Avoid use in applications with significant galvanic corrosion potential when paired with dissimilar metals without proper isolation.

Alternative Products to Consider

Premium Fastening & Joining equivalentHigher corrosion resistance (316 SS)
Economy Fastening & Joining optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the Hex Head Cap Screw, Aluminum 6061 made from?

A: This Hex Head Cap Screw, Aluminum 6061 is manufactured from Aluminum 6061.

Q: What are the main applications?

A: Aerospace components requiring lightweight, high-strength fasteners., Marine equipment and structures where corrosion resistance is critical., Custom automotive builds and performance enhancements..

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 78mmAF30mm1/2"-13TIGHTEN →MECHANICAL PROPERTIESTensile Strength: 150,000 psiThread: 1/2"-13 UNCTorque Direction: Clockwise (CW)Head Marking: 6 radial lines (Grade 8)

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.