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M6 x 55mm Aluminum 6061 Hex Cap Screw

Expert Overview

Engineered for demanding industrial environments, this M6 x 55mm hex head cap screw, crafted from corrosion-resistant Aluminum 6061, offers a lightweight yet robust fastening solution.

StandardASME B18
MaterialAluminum 6061
FinishPassivated
GradeN/A
SizeM6
Length55mm
Head Width14mm

Detailed Engineering Specifications

A proven choice for industrial professionals, this M6 x 55mm hex head cap screw is precision-manufactured from Aluminum Alloy 6061-T6. This aerospace-grade material exhibits excellent corrosion resistance, high strength-to-weight ratio, and good machinability, making it ideal for applications where weight reduction and environmental durability are critical. The M6 thread standard ensures broad compatibility with standard metric components, while the 55mm length and 14mm head width provide ample grip and torque application. Suitable for fastening in aerospace, automotive, marine, and general manufacturing sectors requiring non-magnetic properties and resistance to galvanic corrosion.

🧊 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. Select the appropriate tool (e.g., a correctly sized socket wrench or hex key) for the 14mm head width. 2. Align the M6 threaded portion of the screw with the receiving threaded hole or nut. 3. Engage the threads and tighten the screw progressively to the desired torque specification, ensuring not to over-tighten and strip the threads or damage the Aluminum 6061 material. 4. Verify secure fastening and proper seating of the screw head against the component surface.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASME B18

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)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies 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 excessive torque leading to thread stripping or material deformation.Consult torque charts for Aluminum 6061 fasteners or use a calibrated torque wrench to apply the recommended torque.
Using incompatible tools that can damage the hex head.Ensure the tool perfectly matches the 14mm hex head width to prevent cam-out and damage.

Common Applications

  • Lightweight structural assemblies
  • Corrosion-sensitive environments
  • Automotive and aerospace components

⚠️ Engineering Warnings

  • Aluminum 6061 has lower tensile strength than steel; select appropriate fasteners for load-bearing applications.
  • Avoid use in high-temperature environments that may exceed Aluminum 6061's operational limits.

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: Lightweight structural assemblies, Corrosion-sensitive environments, Automotive and aerospace components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 55mmAF14mm1/2"-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.