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M6 x 77mm Brass Hex Head Cap Screws | Fasten & Join

Expert Overview

Engineered for superior performance, these M6 x 77mm brass hex head cap screws offer excellent corrosion resistance and non-magnetic properties. Their robust construction ensures reliable fastening in demanding environments.

StandardISO 9001
MaterialBrass
FinishZinc Plated
GradeN/A
SizeM6
Length77mm
Head Width30mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, these M6 x 77mm brass hex head cap screws are constructed from high-grade brass, offering exceptional corrosion resistance, good electrical conductivity, and non-magnetic characteristics. The M6 thread size ensures compatibility with standard metric fasteners, while the 77mm length provides ample reach for various assemblies. The substantial 30mm head width distributes load effectively, preventing damage to mating surfaces. These characteristics make them ideal for applications where galvanic corrosion is a concern, such as marine environments, electrical connections, and decorative hardware installations, ensuring both structural integrity and aesthetic appeal.

🧊 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-tighten the screw to start, ensuring proper thread engagement. 3. Utilize an appropriate-sized wrench to tighten the hex head to the desired torque, avoiding overtightening.

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)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies 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
Overtightening the brass screw, which can strip the threads or damage the mating material.Use a torque wrench and adhere to recommended torque specifications for brass fasteners, or tighten until snug with moderate resistance.
Using the wrong tool size, leading to rounded hex heads and difficulty in removal or tightening.Always use a correctly sized hex wrench (Allen key) or socket to ensure a secure grip on the screw head.

Common Applications

  • Electrical connectors and grounding systems
  • Marine hardware and boat fittings
  • Decorative fixtures and architectural elements

⚠️ Engineering Warnings

  • Brass can be a softer material than steel; avoid using excessive force during installation to prevent thread damage.
  • While brass offers good corrosion resistance, avoid prolonged exposure to highly acidic or alkaline environments, which can degrade the material.

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 connectors and grounding systems, Marine hardware and boat fittings, Decorative fixtures and architectural elements.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 77mmAF30mm1/2"-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.