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

M13x18mm Brass Hex Head Cap Screw | Fastener

Expert Overview

This M13 x 18mm brass hex head cap screw offers superior corrosion resistance and a non-sparking characteristic. Its robust brass construction ensures durability in demanding environments.

StandardISO 9001
MaterialBrass
FinishZinc Plated
GradeN/A
SizeM13
Length18mm
Head Width8mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M13 x 18mm hex head cap screw features a precise 8mm head width for optimal wrench engagement. Composed of high-grade brass, it exhibits excellent resistance to galvanic corrosion, making it suitable for moisture-rich or chemically active environments. The material's inherent non-sparking properties are critical for applications in potentially explosive atmospheres or where static discharge is a concern. Its metric sizing conforms to international standards, ensuring compatibility with a wide range of metric components.

🧊 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 an appropriately sized wrench or socket for the 8mm hex head. 2. Thread the M13 cap screw into the pre-tapped hole or nut, ensuring smooth engagement. 3. Tighten to the recommended torque specification for brass fasteners, avoiding over-tightening to prevent thread stripping.

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)
M13Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M13Varies 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 excessive force during tightening, leading to thread damage or fastener breakage.Adhere to the manufacturer's recommended torque specifications for brass fasteners. Utilize a torque wrench for accuracy.
Mixing brass fasteners with dissimilar metals in corrosive environments, potentially causing galvanic corrosion.When using brass fasteners, ensure compatibility with surrounding materials. Consult material compatibility charts for specific applications.

Common Applications

  • Marine hardware and fittings
  • Electrical connectors and enclosures
  • Decorative architectural elements
  • Chemical processing equipment
  • Non-sparking tool applications

⚠️ Engineering Warnings

  • Brass can be susceptible to dezincification under certain aggressive chemical conditions. Verify compatibility with specific environments.
  • While brass is generally less prone to galling than some other materials, proper lubrication and care during installation are still recommended for critical applications.

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 connectors and enclosures, Decorative architectural elements, Chemical processing equipment, Non-sparking tool applications.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 18mmAF8mm1/2"-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.