Home > Fastening & Joining > Hex Head Cap Screw, 316 Stainless Steel

M24 x 149mm 316 Stainless Steel Hex Cap Screw | Industrial Grade

Expert Overview

Engineered for superior performance in corrosive and high-stress environments. This M24 x 149mm 316 stainless steel hex head cap screw provides exceptional strength and durability for critical industrial assemblies.

StandardDIN 933
Material316 Stainless Steel
FinishAnodized
GradeN/A
SizeM24
Length149mm
Head Width22mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M24 x 149mm hex head cap screw is manufactured from premium 316 stainless steel. This alloy offers superior corrosion resistance, particularly in marine, chemical, and food processing applications, due to its molybdenum content. The robust hex head design, with a nominal width of 22mm, allows for high torque application with standard tools, ensuring a secure and reliable connection. Its precise threading and dimensional stability make it ideal for structural assemblies, machinery mounting, and any application requiring long-term integrity under adverse conditions.

🧊 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. Hand-thread the cap screw to verify alignment and prevent cross-threading. 3. Tighten the cap screw to the specified torque value using an appropriate 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)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°C)
Thermal Expansion
Typical for Material Class

Recommended Torque Values

Bolt SizeDry Torque (ft-lbs)Lubricated Torque (ft-lbs)
M24Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M24Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size tool, stripping the hex head.Always use a properly sized socket or wrench that fully engages the hex head.
Over-torquing, leading to thread damage or fastener failure.Consult engineering specifications for the correct torque value and use a calibrated torque wrench.
Using standard steel fasteners in corrosive environments.Always specify 316 stainless steel for superior corrosion resistance in challenging industrial settings.

Common Applications

  • Marine and Offshore Equipment
  • Chemical Processing Plants
  • Food and Beverage Production Lines
  • Structural Steel Assemblies
  • Heavy Machinery Mounting

⚠️ Engineering Warnings

  • Always wear appropriate personal protective equipment (PPE) during installation.
  • Ensure compatibility of mating components and thread pitches before 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, 316 Stainless Steel made from?

A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine and Offshore Equipment, Chemical Processing Plants, Food and Beverage Production Lines, Structural Steel Assemblies, Heavy Machinery Mounting.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 149mmAF22mm1/2"-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.