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M12 x 122mm Carbon Steel Hex Cap Screw

Expert Overview

This M12 x 122mm hex head cap screw, crafted from robust carbon steel, offers superior tensile strength and reliable fastening. Featuring a 27mm head width for optimal tool engagement, it ensures secure connections in demanding environments.

StandardISO 9001
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
SizeM12
Length122mm
Head Width27mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M12 x 122mm hex head cap screw is engineered from high-grade carbon steel, ensuring exceptional tensile strength and shear resistance. The 27mm head width facilitates secure torque application with standard wrenches and sockets, crucial for preventing premature loosening under vibration or load. Its inherent toughness and durability make it ideal for structural assemblies, machinery mounting, and general construction where robust and consistent fastening is paramount. The inherent properties of carbon steel provide a cost-effective yet highly effective solution for a wide range of industrial and commercial applications requiring reliable joint integrity.

🧊 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 mating surfaces are clean and free of debris. 2. Insert the hex head cap screw through the assembled components. 3. Tighten using an appropriately sized wrench or socket to the recommended torque specification for the application, ensuring consistent engagement of the threads.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

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)
M12Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M12Varies 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
Over-tightening the screw, leading to thread stripping or component damage.Utilize a torque wrench to adhere to the manufacturer's recommended torque values for the specific application and materials.
Using the wrong size wrench, resulting in cam-out and damage to the screw head.Always select a wrench or socket that fully engages the hex head for optimal grip and force transfer.

Common Applications

  • Structural Steel Connections
  • Machinery and Equipment Assembly
  • Automotive and Heavy Equipment Manufacturing

⚠️ Engineering Warnings

  • Ensure appropriate thread engagement; insufficient engagement can lead to joint failure.
  • Carbon steel fasteners may require corrosion protection in environments prone to moisture or corrosive agents.

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: Structural Steel Connections, Machinery and Equipment Assembly, Automotive and Heavy Equipment Manufacturing.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 122mmAF27mm1/2"-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.