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M8 x 47mm Aluminum 6061 Hex Cap Screw

Expert Overview

This M8 x 47mm hex head cap screw, crafted from durable Aluminum 6061, offers superior corrosion resistance and a high strength-to-weight ratio. Its precise dimensions ensure reliable performance in demanding industrial environments.

StandardDIN 933
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
SizeM8
Length47mm
Head Width22mm

Detailed Engineering Specifications

Built to exacting engineering tolerances, this M8 x 47mm hex head cap screw features a nominal diameter of M8 and a total length of 47mm. The head exhibits a width of 22mm, providing ample surface area for torque application. Manufactured from Aluminum 6061, it offers excellent machinability, weldability, and resistance to atmospheric and some chemical corrosion. This alloy provides a favorable balance of strength and ductility, making it suitable for a wide range of structural and general-purpose fastening applications where weight reduction and corrosion prevention are critical.

🧊 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 verify proper engagement and avoid cross-threading. 3. Using an appropriate socket wrench, tighten the cap screw to the recommended torque specification for Aluminum 6061 fasteners, typically found in engineering handbooks or manufacturer guidelines.

Equivalent Standards (Cross-Reference)

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

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)
M8Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M8Varies 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 the fastener, which can strip the threads in the mating material or the fastener itself due to Aluminum's lower tensile strength compared to steel.Utilize a torque wrench and adhere to the specified torque values for Aluminum 6061 fasteners. Refer to engineering standards or material supplier recommendations for precise figures.
Using excessive force or improper tools, potentially damaging the hex head or the mating surface.Employ the correct size socket wrench or hex bit that fits snugly. Apply steady, controlled pressure during tightening.

Common Applications

  • Aerospace component assembly
  • Automotive lightweighting projects
  • Marine and coastal equipment fabrication

⚠️ Engineering Warnings

  • Aluminum 6061 fasteners may have lower tensile strength than their steel counterparts; select appropriate grade and torque values to prevent failure.
  • Not recommended for high-temperature applications or environments where aggressive chemicals are present without prior material compatibility verification.

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 component assembly, Automotive lightweighting projects, Marine and coastal equipment fabrication.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 47mmAF22mm1/2"-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.