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M9x29mm Brass Hex Head Cap Screw | Corrosion Resistant Fastener

Expert Overview

These M9x29mm brass hex head cap screws offer exceptional corrosion resistance and a premium aesthetic. Precision manufactured for reliable fastening in demanding environments.

StandardASME B18
MaterialBrass
FinishBlack Oxide
GradeN/A
SizeM9
Length29mm
Head Width20mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M9x29mm hex head cap screw features a nominal diameter of M9 and a length of 29mm. The head boasts a width of 20mm, providing ample surface area for torque application. Constructed from high-quality brass (typically UNS C26000 or similar), this fastener exhibits excellent machinability and superior resistance to corrosion, particularly in marine and humid environments. Its non-sparking properties also make it suitable for hazardous locations. The hex drive ensures a secure grip for standard tooling, facilitating efficient assembly.

🧊 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 mating threads are clean and free of debris. 2. Hand-thread the screw to verify proper alignment and prevent cross-threading. 3. Using an appropriate hex wrench or socket, tighten the screw to the specified torque, avoiding overtightening.

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

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)
M9Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M9Varies 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
Overtightening brass fasteners, which can lead to thread stripping or deformation.Always adhere to recommended torque specifications for brass components. Use a torque wrench for precise control.
Using steel tools on brass, which can cause galling or damage to the fastener head.Employ tools made of softer materials or ensure tools are clean and free of ferrous debris.

Common Applications

  • Marine hardware and fittings
  • Decorative and architectural applications
  • Electrical connectors and switchgear
  • Corrosion-sensitive assemblies

⚠️ Engineering Warnings

  • Brass is a relatively soft material; avoid excessive force that could damage threads or the head.
  • While corrosion-resistant, brass may still react with certain aggressive chemicals. Verify compatibility for specific applications.

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, Decorative and architectural applications, Electrical connectors and switchgear, Corrosion-sensitive assemblies.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 29mmAF20mm1/2"-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.