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M18 x 123mm Ti-6Al-4V Hex Cap Screw | Grade 5 Titanium

Expert Overview

Engineered from premium Titanium Grade 5, this M18 x 123mm hex head cap screw offers superior strength-to-weight ratio and exceptional corrosion resistance for critical structural connections.

StandardISO 9001
MaterialTitanium Grade 5
FinishBlack Oxide
GradeN/A
SizeM18
Length123mm
Head Width34mm

Detailed Engineering Specifications

Built to exacting engineering tolerances, this M18 x 123mm hex head cap screw is manufactured from Titanium Grade 5 (Ti-6Al-4V), a dual-phase alloy renowned for its high tensile strength (up to 895 MPa) and fatigue resistance. The M18 thread pitch ensures robust engagement, while the 123mm nominal length provides ample grip. With a head width of 34mm, it is designed for use with standard M18 tooling. Its biocompatibility and resistance to chloride stress corrosion cracking make it ideal for aerospace airframes, marine hardware, and medical implants.

🧊 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 mating threads are clean and free of debris. 2. Apply a suitable anti-seize compound to the threads to prevent galling, especially in titanium-to-titanium applications. 3. Tighten the screw to the specified torque value using a calibrated torque wrench, ensuring proper engagement of the hex head.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

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-tightening without a torque wrench, leading to thread stripping or fastener failure.Always use a calibrated torque wrench and adhere to manufacturer-specified torque values for Titanium Grade 5 fasteners.
Using standard steel fasteners in corrosive environments where titanium's resistance is required.Select Titanium Grade 5 for applications demanding high corrosion resistance and a superior strength-to-weight ratio.
Failing to use an anti-seize compound, which can cause galling and make removal difficult, particularly with dissimilar metals.Apply a high-quality anti-seize compound specifically formulated for titanium fasteners before installation.

Common Applications

  • Aerospace structural components
  • Marine hardware and offshore equipment
  • High-performance automotive and motorsport
  • Medical implants and surgical instruments
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Titanium Grade 5 fasteners can gall if not properly lubricated with an appropriate anti-seize compound.
  • Always use calibrated torque wrenches to prevent over-tightening and potential fastener damage.

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 hardware and offshore equipment, High-performance automotive and motorsport, Medical implants and surgical instruments, Chemical processing equipment.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 123mmAF34mm1/2"-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.