Home > Fastening & Joining > Hex Head Cap Screw, Brass

M8x99mm Brass Hex Head Cap Screw | Corrosion Resistant Fastener

Expert Overview

This M8x99mm Brass Hex Head Cap Screw offers superior corrosion resistance and non-sparking properties. Ideal for applications requiring durability and safety in challenging environments. A reliable choice for secure fastening.

StandardDIN 933
MaterialBrass
FinishZinc Plated
GradeN/A
SizeM8
Length99mm
Head Width9mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M8x99mm hex head cap screw features a 9mm head width, ensuring compatibility with standard tooling. Constructed from high-grade brass (CuZn39Pb3 or equivalent), it exhibits excellent resistance to corrosion and tarnishing, making it suitable for marine, chemical, and food processing environments. The material's inherent non-sparking nature is critical for hazardous area applications. Its tensile strength and ductility are carefully managed to provide secure and reliable load-bearing capabilities without brittle failure.

🧊 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 socket or wrench for the M8 hex head. 2. Ensure the mating threads are clean and free of debris. 3. Thread the cap screw into the receiving component, applying consistent torque until snug, then tighten to the required specification without over-torquing.

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)
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 the wrong size wrench, leading to head stripping.Always use a wrench or socket that precisely fits the 9mm hex head to prevent damage.
Over-torquing, causing thread damage or fastener fracture.Refer to torque charts for brass fasteners and tighten only to the recommended specification for the application.

Common Applications

  • Marine hardware and fittings
  • Chemical processing equipment
  • Food and beverage machinery
  • Electrical enclosures in corrosive atmospheres
  • Non-sparking tool applications

⚠️ Engineering Warnings

  • Brass is a softer material than steel; avoid excessive force that could deform the head or strip threads.
  • 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, Chemical processing equipment, Food and beverage machinery, Electrical enclosures in corrosive atmospheres, Non-sparking tool applications.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 99mmAF9mm1/2"-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.