Home > Fastening & Joining > Hex Head Cap Screw, Aluminum 6061

M9x121mm Aluminum 6061 Hex Cap Screw | Industrial Grade

Expert Overview

Engineered for superior performance in challenging conditions, this M9x121mm Aluminum 6061 Hex Head Cap Screw offers exceptional corrosion resistance and a lightweight design, ideal for critical industrial applications.

StandardDIN 933
MaterialAluminum 6061
FinishGalvanized
GradeN/A
SizeM9
Length121mm
Head Width20mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M9x121mm Hex Head Cap Screw is precision-manufactured from Aluminum 6061, a high-strength, corrosion-resistant alloy known for its excellent weldability and machinability. With a nominal diameter of M9 and a generous length of 121mm, it provides robust fastening capabilities. The 20mm hex head width ensures secure engagement with standard tooling, facilitating efficient assembly and disassembly. This screw is engineered to withstand moderate tensile and shear loads, making it suitable for applications where weight reduction is paramount without compromising structural integrity. Its inherent resistance to oxidation and galvanic corrosion makes it an ideal choice for marine, aerospace, and chemical processing environments.

🧊 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 from debris. 2. Hand-thread the screw to confirm proper alignment and prevent cross-threading. 3. Tighten the screw using an appropriate wrench or socket to the recommended torque specification, avoiding overtightening.

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)
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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using excessive force, leading to thread stripping or material deformation.Consult torque charts for Aluminum 6061 fasteners and use a calibrated torque wrench.
Using incompatible tools, such as an imperial-sized socket on a metric head.Always use the correct metric-sized socket or wrench for the M9 hex head.

Common Applications

  • Aerospace structural components
  • Marine equipment assembly
  • Lightweight machine frames

⚠️ Engineering Warnings

  • Aluminum 6061 is susceptible to galling; consider using anti-seize compound for high-cycle applications.
  • Do not exceed the material's recommended tensile strength limits for the specific application.

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, Marine equipment assembly, Lightweight machine frames.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 121mmAF20mm1/2"-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.