Home > Fastening & Joining > Hex Head Cap Screw, Carbon Steel

M12x115mm Carbon Steel Hex Cap Screw - Industrial Grade

Expert Overview

Engineered for superior load-bearing capacity and structural integrity, this M12x115mm hex cap screw is manufactured from high-tensile carbon steel, ensuring reliable performance in demanding industrial settings.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
SizeM12
Length115mm
Head Width10mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M12x115mm hex head cap screw is constructed from robust carbon steel, offering excellent tensile strength and shear resistance. The M12 nominal diameter, coupled with a 115mm length, provides substantial fastening capability for heavy-duty applications. The 10mm hex head width is precisely engineered to accept standard metric tools, facilitating efficient and secure tightening with optimal torque transfer. This material grade is chosen for its cost-effectiveness and proven reliability in general-purpose industrial assembly and structural connections. Its resistance to moderate stress and vibration makes it a preferred choice for machinery, construction, and equipment manufacturing.

🧊 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. Insert the cap screw through the assembled components. 3. Tighten the cap screw using an appropriately sized hex wrench or socket to the recommended torque specification, ensuring a secure fit without over-tightening.

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)
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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size wrench, leading to stripped hex heads.Always use a correctly sized metric hex wrench or socket that fits snugly on the head.
Over-tightening the screw, which can damage threads or the screw itself.Refer to torque charts for the specific application and use a torque wrench to achieve the recommended tightening force.
Using a screw in an environment exceeding its material strength or environmental resistance.Verify that the carbon steel material is suitable for the operating temperature, load, and potential corrosive elements of the application. Consider higher-grade alloys or coatings if necessary.

Common Applications

  • Heavy machinery assembly
  • Structural steel connections
  • Equipment manufacturing and repair

⚠️ Engineering Warnings

  • Ensure proper torque is applied to avoid failure or damage.
  • This carbon steel screw may be susceptible to corrosion in humid or chemically aggressive environments; consider 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: Heavy machinery assembly, Structural steel connections, Equipment manufacturing and repair.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 115mmAF10mm1/2"-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.