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M12 x 25mm Carbon Steel Hex Cap Screw

Expert Overview

Engineered for high-strength connections, this M12 x 25mm carbon steel hex head cap screw offers superior durability and reliability in rigorous industrial settings. Its robust design ensures secure fastening.

StandardISO 9001
MaterialCarbon Steel
FinishPlain
GradeN/A
SizeM12
Length25mm
Head Width23mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M12 x 25mm hex head cap screw is manufactured from high-grade carbon steel, providing exceptional tensile strength and shear resistance. The M12 thread diameter ensures a secure and robust connection, while the 25mm length offers versatile application depth. With a precisely machined 23mm hex head width, it is optimized for use with standard wrenches and sockets, facilitating efficient installation and torque application. This fastener meets stringent industrial standards, making it ideal for structural assemblies, machinery, and heavy-duty equipment where load-bearing capacity is critical.

🧊 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. Clean the mating threads to ensure free movement and proper engagement. 2. Insert the cap screw through the components to be joined. 3. Tighten the cap screw using an appropriate wrench or socket to the recommended torque specification for the application, ensuring a secure and stable joint.

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, which can strip the threads or damage the mating components.Always use a torque wrench and adhere to the manufacturer's recommended torque values for the specific application.
Using the wrong size wrench or socket, leading to cam-out and potential damage to the hex head.Ensure the wrench or socket fits snugly on the hex head to provide optimal grip and prevent slippage.

Common Applications

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

⚠️ Engineering Warnings

  • Ensure proper thread engagement to avoid cross-threading.
  • Use appropriate personal protective equipment (PPE) during installation.

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 = 25mmAF23mm1/2"-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.