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

M23x130mm 304 Stainless Steel Hex Cap Screw | Fasteners

Expert Overview

Engineered for superior performance, this M23x130mm Hex Cap Screw is crafted from high-grade 304 stainless steel, offering exceptional corrosion resistance and durability in challenging environments.

StandardDIN 933
Material304 Stainless Steel
FinishBlack Oxide
GradeN/A
SizeM23
Length130mm
Head Width25mm

Detailed Engineering Specifications

Built to exacting engineering tolerances, this M23x130mm hex head cap screw features a nominal diameter of M23 and a shank length of 130mm. The head is designed with a standard 25mm across flats (AF) width for compatibility with common tools. Manufactured from premium 304 stainless steel, it provides excellent resistance to a wide range of corrosive media, including atmospheric conditions, many organic and inorganic chemicals, and food processing environments. This material also exhibits good formability and weldability, along with superior tensile strength and fatigue resistance, making it suitable for structural, marine, and high-temperature applications where reliability is paramount.

🧊 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 threads are clean and free of debris. 2. Apply appropriate lubrication if required for the specific application to prevent galling, especially in stainless steel. 3. Tighten the hex head cap screw to the specified torque using a calibrated torque wrench.

Equivalent Standards (Cross-Reference)

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

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)
M23Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M23Varies 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
Over-tightening can lead to thread stripping or deformation.Always adhere to recommended torque specifications for the thread size and material being joined.
Using standard steel fasteners in corrosive environments will result in premature rust and failure.Select fasteners made from corrosion-resistant materials like 304 stainless steel for marine, outdoor, or chemical-exposed applications.

Common Applications

  • Structural steel connections
  • Marine hardware and assemblies
  • Chemical processing equipment
  • Food and beverage industry machinery
  • Outdoor and corrosive environment installations

⚠️ Engineering Warnings

  • Ensure compatibility of mating threads to prevent cross-threading and damage.
  • For critical load-bearing applications, verify the tensile strength and shear strength requirements against the fastener's capabilities.

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 steel connections, Marine hardware and assemblies, Chemical processing equipment, Food and beverage industry machinery, Outdoor and corrosive environment installations.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 130mmAF25mm1/2"-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.