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M6 x 90mm 304 Stainless Steel Hex Head Cap Screw

Expert Overview

Engineered for superior strength and corrosion resistance, this M6 x 90mm 304 Stainless Steel Hex Head Cap Screw offers a robust fastening solution. Its precise dimensions and high-grade material ensure reliable performance in diverse applications.

StandardASTM A106
Material304 Stainless Steel
FinishGalvanized
GradeN/A
SizeM6
Length90mm
Head Width33mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M6 x 90mm Hex Head Cap Screw is constructed from premium 304 stainless steel, renowned for its excellent corrosion resistance, durability, and non-magnetic properties. The M6 thread ensures compatibility with standard metric fittings, while the 90mm length provides substantial engagement. The substantial 33mm head width facilitates secure torque application with standard tools, making it suitable for a wide range of structural, mechanical, and outdoor applications where rust and environmental degradation are concerns.

🧊 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 tool for the M6 hex head (e.g., socket wrench, Allen key). 2. Insert the screw into the pre-drilled or tapped hole, ensuring proper thread engagement. 3. Tighten the screw to the required torque specification, avoiding over-tightening.

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)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)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies 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 or type of tool, leading to stripped hex heads.Always use a correctly sized and good-quality hex wrench or socket for the M6 head to ensure proper torque transfer and prevent damage.
Over-tightening the screw, which can strip the threads in the mating material or deform the screw head.Tighten the screw to the recommended torque for the application. If unsure, consult engineering specifications or use a torque wrench.

Common Applications

  • Structural assembly in marine environments
  • Outdoor equipment and machinery construction
  • Food processing and chemical plant installations

⚠️ Engineering Warnings

  • Ensure compatibility with mating threads before installation to avoid cross-threading.
  • For critical applications, verify the torque specifications and consider using thread-locking compounds if necessary.

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: Structural assembly in marine environments, Outdoor equipment and machinery construction, Food processing and chemical plant installations.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 90mmAF33mm1/2"-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.