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M18 x 150mm Brass Hex Cap Screw | Corrosion Resistant

Expert Overview

This M18 x 150mm brass hex head cap screw offers superior corrosion resistance and excellent electrical conductivity. Its robust brass construction ensures reliable performance in demanding environments, making it ideal for a wide range of industrial and decorative applications.

StandardISO 9001
MaterialBrass
FinishPlain
GradeN/A
SizeM18
Length150mm
Head Width26mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M18 x 150mm brass hex head cap screw features a nominal diameter of M18, a length of 150mm, and a head width of 26mm. Manufactured from high-quality brass alloy, it exhibits exceptional resistance to corrosion, especially in marine and humid environments, and possesses good electrical conductivity. The hex head design facilitates secure tightening with standard wrenches or sockets, ensuring consistent joint integrity. Its material properties make it suitable for applications where aesthetics, non-magnetic properties, and resistance to certain chemicals are critical considerations.

🧊 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 of debris. 2. Hand-thread the cap screw to engage the initial threads, verifying smooth engagement. 3. Tighten the cap screw using an appropriate wrench or socket to the recommended torque specification for the mating component and application, 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)
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
Using excessive force, leading to stripped threads or bolt breakage.Consult torque charts or application guidelines for the correct tightening torque and use a calibrated torque wrench.
Incorrectly matching screw size to the tapped hole or nut.Always verify the screw's M designation and length against the required specification for the intended joint.

Common Applications

  • Marine hardware and fittings
  • Electrical connections and busbars
  • Decorative fixtures and architectural elements

⚠️ Engineering Warnings

  • Brass is a softer material than steel; avoid applications requiring extreme tensile or shear strength.
  • While corrosion-resistant, brass can still be affected by aggressive chemicals or galvanic corrosion when in direct contact with dissimilar metals in conductive electrolytes.

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 connections and busbars, Decorative fixtures and architectural elements.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 150mmAF26mm1/2"-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.