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M11x18mm Brass Hex Head Cap Screw | Industrial Fastener

Expert Overview

This M11 x 18mm brass hex head cap screw, featuring a 28mm head width, provides superior corrosion resistance. Its inherent non-sparking qualities and excellent electrical conductivity make it a preferred choice for specialized industrial applications.

StandardASTM A106
MaterialBrass
FinishZinc Plated
GradeN/A
SizeM11
Length18mm
Head Width28mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M11 x 18mm brass hex head cap screw offers exceptional performance where corrosion and electrical conductivity are critical factors. Manufactured from high-grade brass, it exhibits excellent resistance to a wide range of chemicals and environments, preventing galvanic corrosion when used with dissimilar metals. The robust 28mm hex head ensures reliable torque transfer for secure fastening. Its non-magnetic and non-sparking properties are essential for use in potentially explosive atmospheres or sensitive electronic assemblies. This fastener is engineered for durability and long service life in challenging operational conditions.

🧊 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 from debris. 2. Hand-thread the screw initially to prevent cross-threading. 3. Tighten to the recommended torque specification using an appropriately sized hex socket wrench.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASTM A106

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)
M11Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M11Varies 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
Over-tightening the brass screw, which can lead to thread stripping or deformation.Adhere to manufacturer-specified torque values and utilize a torque wrench for precise application.
Using steel tools on brass fasteners, which can cause galling or damage to the screw head.Employ brass or aluminum tools, or tools with appropriate coatings, to minimize the risk of damage.

Common Applications

  • Electrical and electronic equipment assembly
  • Marine and offshore hardware
  • Food processing machinery
  • Instrumentation and control systems

⚠️ Engineering Warnings

  • Brass fasteners may have lower tensile strength compared to steel; select fasteners appropriate for the load requirements.
  • Avoid use in applications requiring high shear strength or extreme temperature resistance without proper engineering analysis.

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: Electrical and electronic equipment assembly, Marine and offshore hardware, Food processing machinery, Instrumentation and control systems.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 18mmAF28mm1/2"-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.