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M8 x 34mm 304 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for robust fastening, this M8 x 34mm hex head cap screw is precision-crafted from premium 304 stainless steel. Offering superior corrosion resistance and tensile strength, it ensures reliable performance in demanding environments.

StandardASTM A106
Material304 Stainless Steel
FinishGalvanized
GradeN/A
SizeM8
Length34mm
Head Width24mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M8 x 34mm hex head cap screw features a precisely machined 304 stainless steel body for exceptional corrosion resistance, even in harsh marine or outdoor conditions. Its metric thread conforms to international standards, ensuring compatibility with a wide range of metric components. The 304 stainless steel alloy provides a minimum tensile strength of 515 MPa and a yield strength of 205 MPa, making it suitable for structural applications requiring sustained load-bearing capacity. The head width of 24mm allows for secure torque application with standard tooling.

🧊 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 metric tapping or pre-drilled hole sized for an M8 thread. 2. Insert the hex head cap screw, ensuring it threads smoothly without cross-threading. 3. Tighten the screw to the recommended torque specification using a calibrated torque wrench for the specific application and mating materials.

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)
M8Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M8Varies 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 insufficient torque, leading to loose connections and potential failure.Always utilize a calibrated torque wrench and consult engineering specifications for the correct torque value for M8 fasteners in your specific application.
Cross-threading the screw, which damages both the screw and the mating component.Ensure the screw is started by hand to confirm proper alignment before applying any tool torque. If resistance is felt, back out and realign.

Common Applications

  • Marine hardware and boat building
  • Food processing equipment
  • Outdoor structural components
  • Chemical processing machinery
  • General industrial assembly

⚠️ Engineering Warnings

  • Ensure the mating component is compatible with 304 stainless steel to prevent galvanic corrosion.
  • Avoid over-tightening, which can strip threads or damage the fastener.

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 boat building, Food processing equipment, Outdoor structural components, Chemical processing machinery, General industrial assembly.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 34mmAF24mm1/2"-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.