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

M8x126mm Titanium Grade 5 Hex Cap Screw | Heavy Duty

Expert Overview

Engineered for extreme environments and critical structural integrity. This M8 x 126mm Hex Head Cap Screw, crafted from aerospace-grade Titanium Grade 5, offers exceptional strength-to-weight ratio and superior corrosion resistance.

StandardISO 9001
MaterialTitanium Grade 5
FinishPlain
GradeN/A
SizeM8
Length126mm
Head Width15mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this M8 Hex Head Cap Screw features a substantial M8 thread and a precise 126mm length, ensuring deep and secure engagement. The 15mm head width facilitates high torque application with standard tooling, crucial for critical connections. Fabricated from Titanium Grade 5 (Ti-6Al-4V), it boasts a minimum tensile strength of 895 MPa and excellent fatigue resistance, making it ideal for aerospace, marine, and high-performance automotive sectors where weight reduction and extreme durability are paramount. Its inherent biocompatibility and resistance to saltwater corrosion also make it suitable for medical implants and offshore installations.

🧊 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 appropriate anti-seize compound if specified for the application. 3. Tighten the hex head cap screw to the manufacturer's recommended torque specification using a calibrated torque wrench. 4. Verify proper seating and thread engagement.

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)
M8Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M8Varies 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, leading to thread stripping or fastener fracture.Always use a calibrated torque wrench and adhere to specified torque values.
Using incompatible lubricants or anti-seize compounds, which can affect torque readings or cause galvanic corrosion.Consult material compatibility charts and use only approved lubricants or anti-seize agents for titanium fasteners.

Common Applications

  • Aerospace structural components
  • Marine and offshore equipment
  • High-performance automotive and racing
  • Medical implants (biocompatible)

⚠️ Engineering Warnings

  • Titanium fasteners can gall if not properly lubricated or handled. Use anti-seize compounds specifically designed for titanium.
  • Ensure compatibility of mating materials to prevent galvanic corrosion, especially in marine or corrosive 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, Marine and offshore equipment, High-performance automotive and racing, Medical implants (biocompatible).

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 126mmAF15mm1/2"-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.