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M9 x 141mm 316 Stainless Steel Hex Head Cap Screw

Expert Overview

This M9 x 141mm hex head cap screw is manufactured from premium 316 stainless steel. Engineered for superior corrosion resistance and high tensile strength, it ensures secure and durable fastening in demanding applications.

StandardDIN 933
Material316 Stainless Steel
FinishGalvanized
GradeN/A
SizeM9
Length141mm
Head Width17mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M9 hex head cap screw boasts a nominal diameter of M9 and a substantial length of 141mm, with a 17mm across flats head width. Constructed from 316 stainless steel, it offers exceptional resistance to corrosion, particularly from chlorides, making it ideal for marine environments, chemical processing, and food/beverage industries. Its high tensile strength ensures reliable performance under significant mechanical loads, and its robust construction guarantees long-term structural integrity and fastener longevity in harsh conditions.

🧊 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 threads on both the fastener and mating component are clean and free of debris. 2. Hand-thread the cap screw to confirm proper engagement and avoid cross-threading. 3. Utilize a calibrated torque wrench to tighten the fastener to the manufacturer's specified torque value for the application, ensuring even pressure distribution.

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)
M9Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M9Varies 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 excessive force during initial thread engagement, leading to cross-threading.Always hand-thread the fastener first to ensure it's seating correctly before applying any tools.
Over-torquing the fastener, which can strip threads or deform components.Employ a calibrated torque wrench and adhere to recommended torque specifications for the specific material and application.

Common Applications

  • Marine hardware and structural components
  • Chemical processing equipment and piping
  • Food and beverage manufacturing machinery

⚠️ Engineering Warnings

  • Always verify compatibility of 316 stainless steel with specific corrosive media encountered in the application.
  • Ensure proper torque is applied to prevent loosening or over-stressing of the fastener and mating 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 structural components, Chemical processing equipment and piping, Food and beverage manufacturing machinery.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 141mmAF17mm1/2"-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.