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M18x70mm Titanium Grade 5 Hex Head Cap Screw

Expert Overview

Engineered for demanding applications, this M18x70mm Hex Head Cap Screw utilizes high-performance Titanium Grade 5. Offering exceptional strength-to-weight ratio and superior corrosion resistance, it ensures reliable fastening in critical environments.

StandardASTM A106
MaterialTitanium Grade 5
FinishPassivated
GradeN/A
SizeM18
Length70mm
Head Width23mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M18x70mm Hex Head Cap Screw is constructed from premium Titanium Grade 5 (Ti-6Al-4V), ensuring a minimum tensile strength of 895 MPa and excellent biocompatibility. The M18 thread pitch and 70mm length provide robust joining capabilities, while the 23mm hex head offers a substantial bearing surface for secure torque application. Its inherent lightweight nature and resistance to galvanic corrosion make it indispensable in aerospace, medical implants, marine, and chemical processing industries where performance and longevity are paramount.

🧊 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 threads on both the screw and mating component are clean and free of debris. 2. Apply a small amount of anti-seize lubricant to the threads to prevent galling, especially in titanium-to-titanium applications. 3. Engage the screw by hand to verify thread alignment before applying torque. 4. Tighten using a calibrated torque wrench to the manufacturer's specified torque value, ensuring even pressure and avoiding over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASTM A106

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)
M18Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M18Varies 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 force or overtightening, leading to thread stripping or galling, particularly common with titanium.Always adhere to recommended torque specifications and use a calibrated torque wrench. Employ anti-seize compounds specifically designed for titanium.
Cross-threading the screw, which damages both the screw and the mating component's threads.Carefully align the screw with the receiving threads and start insertion by hand to confirm proper engagement before using a tool.

Common Applications

  • Aerospace structural components
  • Medical implants and surgical instruments
  • High-performance automotive applications
  • Corrosive chemical processing equipment
  • Marine hardware and subsea applications

⚠️ Engineering Warnings

  • Titanium can be susceptible to galling; always use appropriate lubricants and torque values.
  • Ensure compatibility with mating materials to prevent galvanic corrosion, especially in marine or chemical environments.

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, Titanium Grade 5 made from?

A: This Hex Head Cap Screw, Titanium Grade 5 is manufactured from Titanium Grade 5.

Q: What are the main applications?

A: Aerospace structural components, Medical implants and surgical instruments, High-performance automotive applications, Corrosive chemical processing equipment, Marine hardware and subsea applications.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 70mmAF23mm1/2"-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.