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M5 x 133mm Brass Hex Head Cap Screw | Premium Fastener

Expert Overview

This M5 x 133mm brass hex head cap screw offers superior corrosion resistance and aesthetic appeal. Its robust construction ensures reliable fastening for demanding environments and visible applications.

StandardISO 9001
MaterialBrass
FinishAnodized
GradeN/A
SizeM5
Length133mm
Head Width31mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M5 x 133mm hex head cap screw is manufactured from high-grade brass, providing excellent resistance to corrosion and tarnishing, particularly in marine and humid environments. The M5 metric thread ensures secure engagement with standard nuts and tapped holes. With a substantial 31mm head width, it offers a large bearing surface area for optimal load distribution, reducing the risk of fastener pull-through. The 133mm length provides significant grip for thicker materials. Ideal for electrical conductivity applications and decorative fixtures where material integrity and visual quality are paramount.

🧊 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:N/A

Installation Procedure

1. Ensure the mating threads are clean and free from debris. 2. Hand-thread the cap screw to confirm proper alignment and prevent cross-threading. 3. Tighten using an appropriate wrench or socket to the specified torque, avoiding 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

Copper (Cu)60.0 - 63.0%
Zinc (Zn)Balance
Lead (Pb)2.5 - 3.7%

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 excessive force during tightening, which can strip the threads or deform the brass.Apply torque gradually and within the recommended limits for brass fasteners, considering the application's requirements.
Using incompatible tools (e.g., metric wrench on imperial threads) leading to head damage or poor fit.Always use tools that precisely match the screw's head type and thread standard (M5 metric in this case).

Common Applications

  • Marine hardware and fittings
  • Electrical enclosures and components
  • Decorative architectural elements
  • Corrosion-resistant assemblies

⚠️ Engineering Warnings

  • Brass can be softer than steel; avoid applications requiring extreme tensile strength or shear resistance without proper engineering analysis.
  • Brass may react with certain chemicals; verify compatibility before use in aggressive environments.

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, Brass made from?

A: This Hex Head Cap Screw, Brass is manufactured from Brass.

Q: What are the main applications?

A: Marine hardware and fittings, Electrical enclosures and components, Decorative architectural elements, Corrosion-resistant assemblies.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 133mmAF31mm1/2"-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.