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M9x109mm Brass Hex Head Cap Screw | Corrosion-Resistant Fastener

Expert Overview

This M9 x 109mm brass hex head cap screw offers excellent corrosion resistance and non-magnetic properties. Engineered for demanding environments, it ensures reliable fastening in diverse industrial and aesthetic applications.

StandardISO 9001
MaterialBrass
FinishGalvanized
GradeN/A
SizeM9
Length109mm
Head Width18mm

Detailed Engineering Specifications

Specified by design engineers worldwide, this M9 x 109mm brass hex head cap screw conforms to stringent dimensional tolerances, featuring an 18mm head width for optimal torque application. Manufactured from high-grade brass (typically alloy UNS C26000 or equivalent), it exhibits superior resistance to galvanic corrosion and maintains non-magnetic characteristics, making it suitable for sensitive electronic assemblies and environments prone to moisture. The inherent malleability of brass also allows for a degree of conformability, reducing stress on mating components. Its robust construction ensures reliable performance in moderate load-bearing 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 the appropriate M9 tap or threaded hole for the 109mm length. 2. Align the cap screw with the receiving thread, ensuring smooth engagement. 3. Tighten using a suitable wrench or socket on the 18mm hex head, applying controlled torque to avoid stripping or over-stressing the brass.

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)
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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using excessive torque, leading to brass deformation or thread stripping.Employ a torque wrench and adhere to recommended torque values for brass fasteners to prevent damage.
Not considering the potential for galvanic corrosion when mating with dissimilar metals.When used with other metals, particularly those significantly different in electrochemical potential, assess the risk of galvanic corrosion and consider protective measures or alternative materials if necessary.

Common Applications

  • Marine hardware and fittings
  • Electrical connectors and switchgear
  • Decorative and architectural elements
  • Instrumentation and control panels

⚠️ Engineering Warnings

  • Brass fasteners are not recommended for high-tensile strength applications or environments subjected to extreme shock or vibration.
  • Always verify material compatibility, especially when used in corrosive or high-temperature environments, to ensure optimal performance and longevity.

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 switchgear, Decorative and architectural elements, Instrumentation and control panels.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 109mmAF18mm1/2"-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.