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M11x79mm Carbon Steel Hex Head Cap Screw

Expert Overview

This M11 x 79mm hex head cap screw, forged from high-strength carbon steel, provides superior clamping force and reliable performance in critical industrial assemblies.

StandardDIN 933
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
SizeM11
Length79mm
Head Width15mm

Detailed Engineering Specifications

Built to exacting engineering tolerances, this M11 x 79mm hex head cap screw boasts a nominal thread diameter of 11mm and a total length of 79mm. The head features a 15mm hex width, ensuring optimal torque transfer with standard tooling. Manufactured from durable carbon steel, it offers excellent tensile strength and shear resistance, making it suitable for heavy-duty applications requiring secure and permanent joins. Its robust design ensures consistent performance under significant mechanical stress and varying environmental conditions, adhering to strict industrial standards for reliability and longevity.

🧊 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 torque wrench calibrated to the recommended torque value for the M11 thread size. 2. Ensure the mating threads are clean and free from any debris or damage. 3. Engage the hex head fully with the wrench and tighten the cap screw to the specified torque, ensuring a secure and stable connection.

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)
M11Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M11Varies 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
Over-tightening the cap screw, leading to thread stripping or material deformation.Always adhere to the recommended torque specifications for the fastener and the assembled components.
Using a wrench that does not fit the hex head properly, causing cam-out and potential damage to the fastener.Utilize a high-quality wrench that precisely matches the 15mm head width of the cap screw.

Common Applications

  • Machinery assembly and repair
  • Structural steel connections
  • Heavy equipment manufacturing

⚠️ Engineering Warnings

  • Ensure proper thread engagement before applying torque to prevent cross-threading.
  • This carbon steel fastener may be susceptible to corrosion in moist or chemically aggressive environments; consider appropriate protective coatings or alternative materials if necessary.

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 connections, Heavy equipment manufacturing.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 79mmAF15mm1/2"-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.