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M8x28mm Brass Hex Cap Screw | Fastening & Joining

Expert Overview

This M8x28mm brass hex head cap screw offers superior corrosion resistance and non-sparking properties. Its robust brass construction ensures reliable fastening in demanding environments, making it a preferred choice for critical assemblies.

StandardISO 9001
MaterialBrass
FinishGalvanized
GradeN/A
SizeM8
Length28mm
Head Width9mm

Detailed Engineering Specifications

A proven choice for industrial professionals, this M8x28mm brass hex head cap screw is engineered for demanding applications. Crafted from high-quality brass (e.g., UNS C36000 free-cutting brass), it provides excellent corrosion resistance, particularly in marine or chemically aggressive environments, and possesses non-magnetic and non-sparking characteristics vital for electrical installations and hazardous areas. The M8 thread pitch ensures secure engagement, while the 28mm length offers ample fastening depth. The 9mm hex head width is compatible with standard metric tooling, facilitating efficient installation and torque application.

🧊 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 tool (e.g., M8 hex wrench) for the 9mm head width. 2. Insert the M8x28mm brass cap screw into the pre-drilled or tapped hole. 3. Tighten the screw to the required torque specification, ensuring a secure connection without over-torquing.

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)
M8Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M8Varies 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 a steel wrench on a brass screw, potentially damaging the head.Always use a brass or appropriately sized hardened steel wrench to avoid damaging the softer brass head.
Applying excessive torque, which can strip the threads or deform the brass.Adhere to the recommended torque values for M8 brass screws to ensure joint integrity and prevent damage.

Common Applications

  • Marine hardware and fittings
  • Electrical grounding and bonding
  • Corrosion-resistant enclosures and panels

⚠️ Engineering Warnings

  • Brass may be susceptible to dezincification in certain aggressive environments; verify material compatibility.
  • While non-sparking, avoid use in atmospheres with explosive dusts where mechanical friction could still pose a risk.

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 bonding, Corrosion-resistant enclosures and panels.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 28mmAF9mm1/2"-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.