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M7x71mm Aluminum 6061 Hex Cap Screw - Industrial Grade

Expert Overview

This M7x71mm Hex Head Cap Screw, crafted from high-strength Aluminum 6061, offers superior corrosion resistance and a lightweight profile for demanding industrial applications.

StandardASME B18
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
SizeM7
Length71mm
Head Width28mm

Detailed Engineering Specifications

A high-performance industrial component, this M7x71mm Hex Head Cap Screw is manufactured from premium Aluminum 6061 alloy, renowned for its excellent strength-to-weight ratio and exceptional corrosion resistance. The M7 thread size ensures precise engagement, while the 71mm length provides ample reach for various assemblies. The substantial 28mm head width facilitates secure tightening with standard tooling, delivering reliable fastening in environments subject to moderate stress and potential moisture exposure. This material choice mitigates galvanic corrosion risks when paired with dissimilar metals.

🧊 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 cap screw to confirm proper alignment and prevent cross-threading. 3. Tighten the cap screw using a torque wrench set to the manufacturer's recommended specification for Aluminum 6061 fasteners of this size.

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)
M7Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M7Varies 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 screw, potentially stripping the threads or deforming the mating material.Utilize a calibrated torque wrench and adhere to the specified torque values for Aluminum 6061 fasteners to prevent over-stressing the material.
Using the wrong size wrench, leading to cam-out and damage to the hex head.Always select a wrench that precisely fits the 28mm hex head width to ensure proper engagement and prevent damage.

Common Applications

  • Aerospace and automotive sub-assemblies
  • Marine hardware and fixtures
  • Lightweight structural components

⚠️ Engineering Warnings

  • Aluminum 6061 has a lower tensile strength compared to steel; select appropriate torque values to avoid thread damage.
  • While corrosion-resistant, avoid prolonged contact with highly acidic or alkaline environments which can degrade aluminum.

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 and automotive sub-assemblies, Marine hardware and fixtures, Lightweight structural components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 71mmAF28mm1/2"-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.