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M5x70mm Carbon Steel Hex Cap Screw - Durable Fastening

Expert Overview

This M5x70mm hex head cap screw, forged from robust carbon steel, delivers exceptional tensile strength and holding power for demanding industrial and mechanical assemblies. Its precise dimensions ensure secure and reliable fastening.

StandardISO 9001
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
SizeM5
Length70mm
Head Width27mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M5x70mm hex head cap screw boasts a nominal diameter of M5 and a substantial 70mm length, providing ample thread engagement. The 27mm head width facilitates high torque application with standard tooling. Manufactured from high-grade carbon steel, it offers superior tensile strength and resistance to deformation under load, making it suitable for static and dynamic structural applications. Its robust construction ensures consistent performance in environments requiring secure, load-bearing connections.

🧊 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 wrench or socket size for the 27mm hex head. 2. Thread the M5x70mm cap screw into the pre-tapped hole or through the mating components. 3. Apply torque to the specified level, ensuring a secure and stable joint without over-tightening.

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)
M5Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M5Varies 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
Using undersized or damaged tools, leading to hex head stripping.Always use the correct size, high-quality wrench or socket that fits snugly onto the hex head.
Over-tightening the screw, which can cause thread damage or component deformation.Adhere to recommended torque specifications for the application to prevent fastener failure and material stress.

Common Applications

  • Structural framing and bracing
  • Machinery and equipment assembly
  • Automotive and heavy vehicle components

⚠️ Engineering Warnings

  • Ensure proper thread engagement for maximum load-bearing capacity.
  • Use appropriate protective equipment when handling and installing fasteners.

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 framing and bracing, Machinery and equipment assembly, Automotive and heavy vehicle components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 70mmAF27mm1/2"-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.