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M17x21mm Grade 5 Titanium Hex Cap Screw | Fasteners

Expert Overview

This M17x21mm Hex Head Cap Screw, crafted from high-strength Titanium Grade 5, offers superior corrosion resistance and lightweight performance, ideal for critical applications.

StandardDIN 933
MaterialTitanium Grade 5
FinishPassivated
GradeN/A
SizeM17
Length21mm
Head Width32mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M17x21mm Hex Head Cap Screw features a robust M17 thread size and a precise 21mm length, ensuring secure fastening. The 32mm hexagonal head provides ample leverage for installation and removal with standard tooling. Constructed from Titanium Grade 5 (Ti-6Al-4V), this fastener exhibits an exceptional strength-to-weight ratio, excellent fatigue strength, and remarkable resistance to various corrosive media, including saltwater and aggressive chemicals. Its biocompatibility also makes it suitable for medical implants. This makes it the preferred choice for aerospace structures, marine hardware, chemical processing equipment, and high-performance automotive components where reliability 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 thread or hole is clean and free of debris. 2. Apply a suitable lubricant or anti-seize compound to the threads if recommended for the application. 3. Engage the screw by hand for the first few threads to prevent cross-threading. 4. Tighten the screw using a calibrated torque wrench to the manufacturer's specified torque value for M17 Grade 5 Titanium.

Equivalent Standards (Cross-Reference)

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

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)
M17Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M17Varies 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, which can lead to thread stripping or material fatigue.Always use a calibrated torque wrench and adhere to the recommended torque specifications for Titanium Grade 5 fasteners.
Using incompatible tools or forcing the screw, potentially damaging the head or threads.Employ the correct size and type of wrench for the hexagonal head and ensure smooth engagement of the threads.
Not cleaning mating surfaces, which can introduce debris and compromise the joint integrity.Thoroughly clean both the screw threads and the receiving threads or hole before installation.

Common Applications

  • Aerospace structural components
  • Marine hardware and offshore equipment
  • Chemical processing and oil & gas industry fittings
  • High-performance automotive and motorsport assemblies
  • Medical implants and surgical instrumentation

⚠️ Engineering Warnings

  • Titanium Grade 5 can gall; use anti-seize or lubrication to prevent thread seizure, especially in repeated assembly applications.
  • Avoid using steel tools that are not properly protected, as this can lead to galvanic corrosion with titanium components.

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, Chemical processing and oil & gas industry fittings, High-performance automotive and motorsport assemblies, Medical implants and surgical instrumentation.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 21mmAF32mm1/2"-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.