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M6 x 18mm Brass Hex Head Cap Screw - Corrosion Resistant

Expert Overview

This M6 x 18mm brass hex head cap screw offers superior corrosion resistance and aesthetic appeal. Ideal for applications where traditional steel fasteners may degrade.

StandardDIN 933
MaterialBrass
FinishZinc Plated
GradeN/A
SizeM6
Length18mm
Head Width13mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M6 hex head cap screw is precisely machined from high-grade brass, ensuring excellent machinability and inherent corrosion resistance, particularly in marine and humid environments. The M6 thread designation provides a secure and reliable fastening solution. With an overall length of 18mm and a nominal head width of 13mm, it offers ample surface area for torque application via a standard wrench or socket. Brass's non-sparking properties also make it suitable for hazardous environments. This fastener meets stringent industry standards for dimensional accuracy and material integrity, guaranteeing consistent performance in demanding applications.

🧊 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. Select an appropriate wrench or socket (13mm nominal size) to fit the hex head. 2. Ensure the mating threaded hole or nut is clean and free of debris. 3. Thread the screw into the assembly by hand to prevent cross-threading. 4. Tighten the screw to the required torque specification using the wrench, avoiding overtightening.

Equivalent Standards (Cross-Reference)

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

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)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies 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 stripping of the hex head.Always use a wrench or socket that precisely matches the nominal head width (13mm for this M6 screw) for optimal engagement and torque transfer.
Cross-threading the screw during initial insertion, damaging both the screw and the mating thread.Start the screw by hand for several turns to confirm proper alignment and engagement of the threads before applying any torque.

Common Applications

  • Marine hardware and fittings
  • Electrical connectors and enclosures
  • Decorative trim and fixtures
  • Corrosive environment assembly

⚠️ Engineering Warnings

  • Brass may be susceptible to dezincification in certain aggressive chemical environments; verify compatibility.
  • While brass is less prone to sparking than steel, extreme caution should still be exercised in potentially explosive atmospheres.

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 connectors and enclosures, Decorative trim and fixtures, Corrosive environment assembly.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 18mmAF13mm1/2"-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.