Home > Fastening & Joining > Hex Head Cap Screw, Titanium Grade 5

M18x18mm Titanium Grade 5 Hex Head Cap Screw

Expert Overview

Engineered for critical applications, this M18x18mm Hex Head Cap Screw is forged from aerospace-grade Titanium Grade 5, offering exceptional strength and corrosion resistance for extreme environments.

StandardASTM A106
MaterialTitanium Grade 5
FinishAnodized
GradeN/A
SizeM18
Length18mm
Head Width11mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this Hex Head Cap Screw is manufactured from Titanium Grade 5 alloy (Ti-6Al-4V), renowned for its superior strength-to-weight ratio, high tensile strength, and excellent corrosion resistance in harsh chemical and saline conditions. With an M18 nominal size, an 18mm length, and an 11mm head width, it provides robust fastening capabilities for high-stress assemblies. Ideal for aerospace structures, marine hardware, medical implants, and chemical processing equipment 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 the mating threads are clean and free from debris. 2. Hand-thread the cap screw to verify proper engagement and alignment. 3. Torque the fastener to the manufacturer's specified value using a calibrated torque wrench, ensuring the head is seated flush against the mating surface.

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
Over-torquing the titanium fastener.Always use a calibrated torque wrench and adhere to recommended torque values for Titanium Grade 5 to prevent thread stripping or material deformation.
Using incompatible lubricants or anti-seize compounds.Consult material compatibility charts. For titanium, specialized anti-seize compounds designed for reactive metals should be used to prevent galling.

Common Applications

  • Aerospace structural components
  • Marine and offshore equipment
  • Chemical processing plant hardware
  • High-performance automotive assemblies
  • Medical implant fixation

⚠️ Engineering Warnings

  • Titanium Grade 5 can gall if not properly lubricated or if subjected to excessive friction during installation. Use appropriate anti-seize compounds.
  • Always verify the chemical compatibility of the titanium fastener with the surrounding environment and mating materials to prevent galvanic corrosion.

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, Marine and offshore equipment, Chemical processing plant hardware, High-performance automotive assemblies, Medical implant fixation.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 18mmAF11mm1/2"-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.