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M9 x 133mm 316 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for superior performance, this M9 x 133mm hex head cap screw is crafted from premium 316 stainless steel, offering exceptional corrosion resistance and durability for critical industrial assemblies.

StandardASTM A106
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM9
Length133mm
Head Width16mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M9 x 133mm hex head cap screw features a robust M9 thread size and a total length of 133mm, ensuring secure and reliable fastening in high-stress applications. The 16mm hex head width facilitates high torque application with standard tooling. Constructed from 316 stainless steel, it boasts superior resistance to pitting and crevice corrosion, making it ideal for marine, chemical processing, and food & beverage industries where exposure to aggressive media is common. Its excellent tensile strength and fatigue resistance contribute to the longevity and integrity of assembled structures.

🧊 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 both mating threads are clean and free of debris. 2. Hand-thread the cap screw to confirm proper engagement and alignment. 3. Tighten the cap screw to the specified torque using an appropriate wrench or calibrated torque tool.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASTM A106

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 the wrong size wrench, leading to head stripping.Always use a wrench that precisely matches the 16mm head width to ensure proper grip and prevent damage.
Over-tightening, which can compromise thread integrity or material strength.Adhere to the recommended torque specifications for the specific application to avoid over-stressing the fastener and surrounding materials.

Common Applications

  • Marine equipment and offshore structures
  • Chemical processing plant equipment
  • Food and beverage processing machinery

⚠️ Engineering Warnings

  • Always wear appropriate personal protective equipment (PPE) when handling and installing fasteners.
  • 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, 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 equipment and offshore structures, Chemical processing plant equipment, Food and beverage processing machinery.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 133mmAF16mm1/2"-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.