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M18 x 146mm Brass Hex Cap Screw - Corrosion Resistant

Expert Overview

Engineered for superior performance in demanding environments, this M18 x 146mm brass hex head cap screw offers exceptional corrosion resistance and moderate strength for reliable fastening.

StandardDIN 933
MaterialBrass
FinishBlack Oxide
GradeN/A
SizeM18
Length146mm
Head Width19mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this M18 x 146mm hex head cap screw is manufactured from solid brass, providing inherent resistance to corrosion and excellent electrical conductivity. The M18 thread size ensures robust engagement, while the 146mm length offers significant clamping capability. The 19mm hex head width is designed for secure torque application with standard tooling. Brass's machinability and aesthetic appeal make it suitable for both functional and visible connections where galvanic corrosion is a concern. Ideal for marine, electrical, and chemical processing industries.

🧊 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-tighten the screw to establish thread engagement. 3. Use a calibrated torque wrench to tighten to the specified torque value, ensuring even distribution of load.

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)
M18Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M18Varies 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
Over-tightening brass fasteners, which can lead to thread stripping or material deformation.Adhere strictly to recommended torque specifications for brass fasteners and utilize a torque wrench for precise control.
Using brass screws in applications requiring extremely high tensile strength or dynamic load bearing.Evaluate the application's load requirements; for superior strength, consider alloy steels or stainless steel fasteners.

Common Applications

  • Marine hardware and fittings
  • Electrical grounding and connection points
  • Chemical processing equipment
  • Architectural and decorative fixtures

⚠️ Engineering Warnings

  • Brass has lower tensile strength compared to steel; do not exceed recommended torque limits.
  • While corrosion resistant, brass can react with certain aggressive chemicals. Verify compatibility for specific 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 grounding and connection points, Chemical processing equipment, Architectural and decorative fixtures.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 146mmAF19mm1/2"-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.