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M5 x 69mm 316 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for demanding environments, this M5 x 69mm hex head cap screw is crafted from superior 316 stainless steel for exceptional corrosion resistance and strength. Its robust design ensures secure fastening in corrosive and high-temperature applications.

StandardDIN 933
Material316 Stainless Steel
FinishAnodized
GradeN/A
SizeM5
Length69mm
Head Width20mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M5 x 69mm hex head cap screw features a nominal diameter of M5 and a substantial length of 69mm, ensuring deep thread engagement. The head boasts a generous 20mm width for optimal tool grip and torque application. Constructed from premium 316 stainless steel, it offers superior resistance to pitting, crevice corrosion, and general corrosion, making it ideal for marine, chemical processing, food and beverage, and pharmaceutical industries. The alloy's excellent mechanical properties maintain integrity under stress and varying temperatures.

🧊 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:Yes

Installation Procedure

1. Ensure mating threads are clean and free from debris. 2. Hand-thread the cap screw to verify proper alignment and prevent cross-threading. 3. Using an appropriate wrench or socket of size 20mm, tighten the cap screw to the required torque specification, ensuring a secure connection without overtightening.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°C)
Thermal Expansion
Typical for Material Class

Recommended Torque Values

Bolt SizeDry Torque (ft-lbs)Lubricated Torque (ft-lbs)
M5Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M5Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using a wrench or socket size that does not fit the 20mm head width, leading to stripped heads or improper torque application.Always use a correctly sized 20mm wrench or socket to engage the hex head fully and achieve optimal torque transfer.
Overtightening the fastener, which can lead to thread stripping, material deformation, or reduced fastener integrity.Consult engineering specifications for the correct torque value and use a torque wrench to ensure precise tightening, preventing damage to the fastener and mating components.

Common Applications

  • Marine hardware and fittings
  • Chemical processing equipment
  • Food and beverage machinery
  • Pharmaceutical manufacturing
  • Outdoor and coastal construction

⚠️ Engineering Warnings

  • Ensure compatibility with mating materials to prevent galvanic corrosion, especially in marine environments.
  • Do not exceed the maximum recommended torque values to avoid fastener failure or damage to 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, 316 Stainless Steel made from?

A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine hardware and fittings, Chemical processing equipment, Food and beverage machinery, Pharmaceutical manufacturing, Outdoor and coastal construction.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 69mmAF20mm1/2"-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.