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M15 x 137mm 316 Stainless Steel Hex Head Cap Screw

Expert Overview

Engineered for superior strength and corrosion resistance, this M15 x 137mm hex head cap screw is constructed from premium 316 stainless steel. Its robust design ensures reliable fastening in critical applications.

StandardDIN 933
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM15
Length137mm
Head Width29mm

Detailed Engineering Specifications

A proven choice for industrial professionals, this M15 x 137mm hex head cap screw boasts a substantial 29mm head width for optimal torque application. Manufactured from 316 stainless steel, it offers exceptional resistance to corrosion, pitting, and crevice corrosion, making it ideal for marine, chemical processing, and food & beverage industries. The inherent strength and durability of this alloy ensure long-term performance in aggressive environments, reducing maintenance and replacement costs. Its precise threading guarantees secure and stable connections in a wide array of structural and mechanical assemblies.

🧊 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 size to fit the 29mm hex head. 2. Ensure the mating threads are clean and free from debris. 3. Apply the required torque to achieve a secure fastening, avoiding over-tightening.

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)
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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size wrench, leading to damaged hex head or stripped threads.Always use a wrench that precisely matches the 29mm head width for optimal engagement and torque transfer.
Applying excessive torque, which can compromise the integrity of the screw or the mating component.Consult engineering specifications or best practices for the correct torque values for M15 fasteners in your specific application.

Common Applications

  • Marine and offshore equipment construction
  • Chemical processing plant infrastructure
  • Food and beverage processing machinery
  • Outdoor structural assemblies
  • Corrosive environment mechanical systems

⚠️ Engineering Warnings

  • Ensure proper thread engagement to prevent cross-threading, which can damage both the screw and the receiving component.
  • For critical load-bearing applications, always verify that the material properties and dimensions meet or exceed engineering requirements.

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 construction, Chemical processing plant infrastructure, Food and beverage processing machinery, Outdoor structural assemblies, Corrosive environment mechanical systems.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 137mmAF29mm1/2"-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.