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M15x67mm Carbon Steel Hex Head Cap Screw

Expert Overview

Engineered for robust performance, this M15x67mm hex head cap screw boasts a 31mm head width and is constructed from high-grade carbon steel for exceptional tensile strength and durability.

StandardDIN 933
MaterialCarbon Steel
FinishAnodized
GradeN/A
SizeM15
Length67mm
Head Width31mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M15x67mm hex head cap screw is forged from premium carbon steel, offering superior tensile strength and resistance to shear forces, ideal for demanding structural and mechanical assemblies. The M15 metric thread ensures reliable engagement with corresponding nuts and tapped holes, while the 31mm hex head provides ample surface area for standard tooling, facilitating secure tightening and loosening. Its inherent material properties make it suitable for a wide range of operating temperatures and environments where load-bearing capacity is critical.

🧊 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 mating component (nut or tapped hole) with M15 threading. 2. Insert the cap screw through the assembled components. 3. Tighten the cap screw using a wrench or socket on the 31mm hex head to the recommended torque specification for the M15 thread size and material.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using a metric screw with an imperial fastener system.Ensure that the M15 thread pitch is compatible with the receiving component's threading.
Overtightening the screw, leading to thread stripping or material deformation.Consult a torque chart for M15 carbon steel screws and apply the specified torque using a calibrated torque wrench.

Common Applications

  • Heavy machinery assembly
  • Structural steel fabrication
  • Automotive chassis components

⚠️ Engineering Warnings

  • Do not exceed the screw's rated tensile strength.
  • Ensure the carbon steel material is appropriate for the operating environment to prevent corrosion or degradation.

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, Carbon Steel made from?

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

Q: What are the main applications?

A: Heavy machinery assembly, Structural steel fabrication, Automotive chassis components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 67mmAF31mm1/2"-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.