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M16x78mm Aluminum 6061 Hex Cap Screw | Fasteners

Expert Overview

Engineered for demanding applications, this M16x78mm hex head cap screw offers superior strength-to-weight ratio with its Aluminum 6061 construction. Ensures secure and lightweight fastening solutions.

StandardISO 9001
MaterialAluminum 6061
FinishAnodized
GradeN/A
SizeM16
Length78mm
Head Width11mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M16x78mm hex head cap screw utilizes the high-strength, excellent corrosion resistance of Aluminum 6061 alloy. The material's good weldability and machinability make it suitable for a wide range of industrial and aerospace applications where weight reduction is critical without compromising structural integrity. The M16 nominal diameter, 78mm length, and 11mm head width are precisely controlled to ensure consistent performance and interchangeability in assemblies requiring specific engagement and torque characteristics. This fastener is designed for use with compatible M16 nuts and tapped holes.

🧊 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. Clean the threaded hole and the screw threads to remove any debris or contaminants. 2. Hand-thread the screw into the mating component to ensure proper alignment and prevent cross-threading. 3. Using an appropriate wrench or socket, tighten the screw to the specified torque, 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)
M16Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M16Varies 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
Using the wrong size wrench, leading to stripping of the hex head.Always use a wrench or socket that precisely matches the 11mm head width of the screw.
Cross-threading the screw due to misaligned insertion.Carefully start the screw by hand to confirm it engages correctly with the mating threads before applying rotational force.
Over-tightening Aluminum 6061 screws, potentially damaging threads or the fastener.Refer to torque specifications for Aluminum 6061 fasteners and use a torque wrench for accurate tightening.

Common Applications

  • Aerospace structural components
  • Automotive lightweighting assemblies
  • Marine hardware and fixtures
  • High-performance equipment manufacturing
  • General industrial machinery

⚠️ Engineering Warnings

  • Aluminum 6061 has a lower tensile strength than steel; do not use in applications requiring extreme load-bearing capacity without proper engineering analysis.
  • Avoid using in highly corrosive environments without additional protective coatings or consideration of alternative materials if longevity is paramount.

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 structural components, Automotive lightweighting assemblies, Marine hardware and fixtures, High-performance equipment manufacturing, General industrial machinery.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 78mmAF11mm1/2"-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.