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M23 x 145mm 304 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for superior strength and corrosion resistance, this M23 x 145mm 304 stainless steel hex head cap screw is a critical component for demanding environments. Its robust design ensures reliable fastening in a wide range of industrial settings.

StandardDIN 933
Material304 Stainless Steel
FinishGalvanized
GradeN/A
SizeM23
Length145mm
Head Width34mm

Detailed Engineering Specifications

A high-performance industrial component, this M23 x 145mm hex head cap screw is manufactured from premium 304 stainless steel, offering exceptional resistance to corrosion, pitting, and crevice corrosion in harsh environments. The nominal diameter is M23, with a total length of 145mm and a head width measuring 34mm, ensuring a secure and stable connection. This material grade (304) provides good strength and ductility, making it suitable for applications requiring moderate to high load-bearing capacity and exposure to various chemicals and moisture. Its precise manufacturing adheres to strict tolerances for consistent performance and interchangeability. Typical applications include structural assembly, machinery mounting, and equipment installation in marine, chemical processing, and food and beverage industries.

🧊 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 M23 hex head. 2. Clean both the screw threads and the receiving tapped hole or nut to remove any debris or contaminants. 3. Insert the screw and engage the threads, tightening by hand initially to prevent cross-threading. 4. Use the wrench or socket to progressively tighten the screw to the required torque specification, ensuring even pressure and a secure fit.

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
Using the wrong size wrench or socket, leading to cam-out and potential stripping of the hex head.Always use a properly sized, high-quality wrench or socket that fits snugly onto the hex head.
Over-tightening the screw, which can lead to thread damage, deformation of the component, or even failure of the screw.Adhere to the manufacturer's recommended torque specifications for the specific application and material.
Installing the screw into a dirty or damaged threaded hole, causing cross-threading and making removal or reinstallation difficult.Thoroughly inspect and clean the receiving threads before installation, and if necessary, use a thread chaser.

Common Applications

  • Structural steel connections
  • Heavy machinery assembly
  • Marine hardware and fittings
  • Chemical processing equipment
  • Food and beverage processing machinery

⚠️ Engineering Warnings

  • Ensure the material compatibility of mating parts to prevent galvanic corrosion.
  • Always wear appropriate personal protective equipment (PPE) during installation, including safety glasses and gloves.
  • Do not exceed the recommended torque values, as this can compromise the integrity of the fastener and the assembly.

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, Heavy machinery assembly, Marine hardware and fittings, Chemical processing equipment, Food and beverage processing machinery.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 145mmAF34mm1/2"-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.