Home > Fastening & Joining > Hex Head Cap Screw, 304 Stainless Steel

M9 x 76mm 304 Stainless Steel Hex Cap Screw

Expert Overview

This M9 x 76mm hex head cap screw, constructed from premium 304 stainless steel, offers superior corrosion resistance and exceptional tensile strength. Designed for reliable and secure fastening in demanding industrial environments.

StandardASME B18
Material304 Stainless Steel
FinishPassivated
GradeN/A
SizeM9
Length76mm
Head Width11mm

Detailed Engineering Specifications

A high-performance industrial component, this M9 x 76mm hex head cap screw is engineered from grade 304 stainless steel, renowned for its excellent corrosion resistance to a wide range of aggressive media and its robust mechanical properties, including good tensile and yield strength. The precisely machined M9 thread ensures secure engagement with compatible nuts and tapped holes, while the 76mm length provides ample reach for various assembly requirements. The 11mm hex head width is optimized for standard tooling, facilitating efficient installation and removal without compromising structural integrity. This fastener is ideal for applications requiring long-term durability and resistance to environmental degradation.

🧊 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 the mating thread or nut is clean and free from debris. 2. Hand-tighten the screw to engage threads properly, preventing cross-threading. 3. Use an appropriately sized wrench or socket to tighten the screw to the specified torque, ensuring a secure connection.

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 damaged hex head and potential stripping.Always use a wrench or socket that precisely fits the 11mm hex head to ensure proper torque application and prevent damage.
Cross-threading the screw due to improper alignment or forcing.Start threading by hand to confirm proper engagement before applying any torque. If resistance is met, back out and re-align.

Common Applications

  • Marine and offshore equipment construction
  • Food processing machinery assembly
  • Chemical processing plant maintenance

⚠️ Engineering Warnings

  • Ensure compatibility with mating components (nut/tapped hole) for proper thread engagement.
  • Adhere to recommended torque specifications to avoid over-tightening or under-tightening, which can compromise joint integrity.

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 and offshore equipment construction, Food processing machinery assembly, Chemical processing plant maintenance.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 76mmAF11mm1/2"-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.