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

M5 x 113mm 304 Stainless Steel Hex Cap Screws

Expert Overview

This M5 x 113mm hex head cap screw, crafted from robust 304 stainless steel, offers superior corrosion resistance and durability for demanding industrial environments. Engineered for secure fastening and long-term performance.

StandardASTM A106
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM5
Length113mm
Head Width11mm

Detailed Engineering Specifications

A proven choice for industrial professionals, this M5 x 113mm hex head cap screw features a nominal diameter of 5mm and a total length of 113mm. The hex head provides a substantial 11mm width for secure torque application using standard wrenches or sockets. Constructed from premium 304 stainless steel, it exhibits excellent resistance to corrosion, pitting, and stress cracking, making it ideal for applications exposed to moisture, chemicals, or saltwater. This material also offers good tensile strength and ductility, ensuring reliable performance in a wide range of operational conditions, from general assembly to critical structural components. Its precise manufacturing guarantees consistent fit and function across multiple units.

🧊 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 11mm hex head. 2. Ensure the mating threads are clean and free of debris. 3. Thread the M5 x 113mm cap screw into the designated receiving hole, applying consistent torque until securely fastened. Avoid 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)
M5Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M5Varies 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 stripped hex heads.Always use a wrench or socket that precisely fits the 11mm head width to prevent damage and ensure proper torque.
Cross-threading the screw during installation, damaging both the screw and the mating threads.Carefully align the screw with the receiving threads and start threading by hand for several turns to ensure proper engagement before applying torque.

Common Applications

  • Marine and offshore equipment assembly
  • Chemical processing and handling systems
  • Food and beverage processing machinery
  • Outdoor structural applications
  • Corrosive environment assemblies

⚠️ Engineering Warnings

  • Ensure the 304 stainless steel material is compatible with the specific chemical or environmental exposure to prevent premature corrosion.
  • Always use appropriate torque specifications for the application to avoid fastener failure or damage to mating components.

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 assembly, Chemical processing and handling systems, Food and beverage processing machinery, Outdoor structural applications, Corrosive environment assemblies.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 113mmAF11mm1/2"-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.