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M9x74mm 304 Stainless Steel Hex Cap Screw | Fastener

Expert Overview

Engineered for demanding environments, this M9 x 74mm hex head cap screw is crafted from superior 304 stainless steel, ensuring exceptional corrosion resistance and mechanical integrity for critical fastening needs.

StandardASME B18
Material304 Stainless Steel
FinishPassivated
GradeN/A
SizeM9
Length74mm
Head Width14mm

Detailed Engineering Specifications

A high-performance industrial component, this M9 x 74mm hex head cap screw is precision-manufactured from 304 stainless steel, offering excellent tensile strength and superior corrosion resistance against a wide range of chemicals and environments. The M9 thread provides robust joining capabilities, while the 74mm length allows for secure fastening through thicker materials. The 14mm hex head width ensures adequate torque transfer with standard tooling, making it suitable for applications requiring reliable and durable connections in sectors such as marine, chemical processing, food and beverage, and outdoor construction.

🧊 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. Select the appropriate wrench or socket for the 14mm hex head. 2. Insert the M9 x 74mm cap screw into the pre-drilled and tapped hole or through the mating components. 3. Apply controlled torque, ensuring the screw is seated flush against the mating surface without overtightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASME B18

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)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size wrench, leading to stripping the hex head.Always use a wrench or socket that precisely fits the 14mm hex head to ensure proper torque application and prevent damage.
Overtightening the screw, which can lead to thread stripping or component damage.Utilize a torque wrench and adhere to the recommended torque specifications for M9 threads in the specific materials being joined.

Common Applications

  • Marine hardware and fixtures
  • Chemical processing equipment
  • Food grade machinery assembly
  • Outdoor structural components

⚠️ Engineering Warnings

  • Ensure compatibility of 304 stainless steel with the specific corrosive environment to prevent premature degradation.
  • Always use appropriate safety glasses and gloves during installation.

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, 304 Stainless Steel made from?

A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Marine hardware and fixtures, Chemical processing equipment, Food grade machinery assembly, Outdoor structural components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 74mmAF14mm1/2"-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.