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M15 x 85mm 304 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for demanding environments, this M15 x 85mm hex head cap screw is forged from premium 304 stainless steel. Its robust construction ensures superior corrosion resistance and exceptional tensile strength for reliable fastening in critical applications.

StandardISO 9001
Material304 Stainless Steel
FinishPassivated
GradeN/A
SizeM15
Length85mm
Head Width34mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M15 x 85mm hex head cap screw boasts a nominal diameter of 15mm and a length of 85mm, with a substantial 34mm hex head width for enhanced torque application. Constructed from high-grade 304 stainless steel, it offers excellent resistance to a broad spectrum of corrosive agents, including chlorides, making it ideal for environments prone to rust and degradation. Its inherent strength and durability ensure long-term performance and structural integrity in demanding industrial settings. The material composition provides good ductility and formability, allowing for secure and reliable fastening without compromising structural integrity.

🧊 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 torque wrench and socket size for the 34mm hex head. 2. Ensure the mating threads are clean and free from debris. 3. Apply the recommended torque to achieve a secure connection, avoiding over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

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)
M15Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M15Varies 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 excessive force during tightening, potentially stripping threads or deforming the fastener.Adhere to specified torque values for the application. Utilize a calibrated torque wrench for accurate tension.
Contaminating the stainless steel surface, leading to potential corrosion.Handle with clean gloves. Avoid contact with carbon steel or other dissimilar metals that could cause galvanic corrosion.

Common Applications

  • Marine and offshore equipment construction
  • Food processing and pharmaceutical machinery
  • Chemical processing plants and corrosive environments
  • Structural assembly requiring high corrosion resistance

⚠️ Engineering Warnings

  • Ensure compatibility of mating materials to prevent galvanic corrosion.
  • Always use appropriate personal protective equipment (PPE) 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 and offshore equipment construction, Food processing and pharmaceutical machinery, Chemical processing plants and corrosive environments, Structural assembly requiring high corrosion resistance.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 85mmAF34mm1/2"-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.