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M6 x 12mm Carbon Steel Hex Cap Screw | Heavy Duty Fastener

Expert Overview

Engineered for demanding industrial and construction environments, this M6 x 12mm hex cap screw provides robust and reliable fastening. Its high-strength carbon steel construction ensures superior load-bearing capacity and durability.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
SizeM6
Length12mm
Head Width8mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this M6 x 12mm hex head cap screw is manufactured from high-grade carbon steel, offering exceptional tensile strength and shear resistance. The M6 thread size ensures compatibility with standard metric receivers, while the 12mm length provides adequate engagement for a secure joint. The 8mm hex head width is optimized for standard tooling, facilitating efficient installation and removal. This fastener is ideal for structural assemblies, machinery mounting, and any application requiring a dependable and robust connection under significant stress. Its carbon steel composition offers a cost-effective yet highly durable solution for a wide range of industrial settings.

🧊 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 from debris. 2. Hand-thread the cap screw into the receiving component to verify alignment and prevent cross-threading. 3. Using the appropriate socket wrench, tighten the cap screw to the recommended torque specification for the application, ensuring a secure and stable connection.

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)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies 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 incorrect torque, leading to over-tightening and thread stripping, or under-tightening and joint failure.Always consult engineering drawings or a torque chart for the correct torque specification based on the application and materials being joined.
Cross-threading the screw due to misalignment or forcing the fastener into the receiver.Start threading by hand to confirm proper engagement. If resistance is felt, back out and re-align before continuing to tighten.

Common Applications

  • Machinery assembly and repair
  • Structural steel construction
  • Automotive and aerospace components

⚠️ Engineering Warnings

  • Ensure proper personal protective equipment (PPE) is worn during installation.
  • Do not exceed the recommended torque specifications to prevent fastener damage or joint 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 assembly and repair, Structural steel construction, Automotive and aerospace components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 12mmAF8mm1/2"-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.