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M16 x 15mm Carbon Steel Hex Head Cap Screw

Expert Overview

This M16 x 15mm Hex Head Cap Screw, constructed from robust carbon steel, provides exceptional tensile strength and durability. Its precise dimensions ensure secure and reliable fastening in a wide range of industrial applications.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
SizeM16
Length15mm
Head Width25mm

Detailed Engineering Specifications

Specified by design engineers worldwide, this M16 x 15mm Hex Head Cap Screw is manufactured from high-grade carbon steel, offering superior tensile and shear strength for critical load-bearing applications. The M16 thread size ensures robust engagement, while the 15mm length provides precise fitment for medium-duty assemblies. The 25mm hex head width allows for secure torque application with standard tooling, facilitating efficient assembly processes. This fastener is designed to meet stringent industrial standards for performance and longevity, making it a trusted choice for mechanical, automotive, and construction sectors.

🧊 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 size (25mm for this M16 screw). 2. Ensure the mating threads are clean and free from debris. 3. Insert the cap screw and engage the threads by hand to prevent cross-threading. 4. Tighten the 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 StandardASME B18

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)
M16Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M16Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using an incorrect wrench size, leading to stripping of the hex head.Always use the specified 25mm wrench or socket for M16 hex head cap screws.
Over-tightening, which can lead to thread damage or fastener failure.Consult engineering drawings for the correct torque specification and use a calibrated torque wrench.
Cross-threading the screw during initial insertion.Start thread engagement by hand to ensure proper alignment before applying force.

Common Applications

  • Machinery and equipment assembly
  • Structural steel connections
  • Automotive component fastening

⚠️ Engineering Warnings

  • Ensure appropriate personal protective equipment (PPE) is worn during installation.
  • Do not exceed the recommended torque limits as specified by engineering design to prevent fastener failure.

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: Machinery and equipment assembly, Structural steel connections, Automotive component fastening.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 15mmAF25mm1/2"-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.