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M18 x 134mm Polycarbonate Hex Head Cap Screw

Expert Overview

Engineered for superior performance, this M18 x 134mm hex head cap screw is crafted from robust polycarbonate. It provides exceptional strength, corrosion resistance, and electrical insulation for critical fastening needs.

StandardASTM A106
MaterialPolycarbonate
FinishBlack Oxide
GradeN/A
SizeM18
Length134mm
Head Width24mm

Detailed Engineering Specifications

A high-performance industrial component, this M18 x 134mm hex head cap screw boasts a nominal diameter of M18 and a total length of 134mm. The head width measures 24mm, ensuring compatibility with standard tooling. Manufactured from high-impact polycarbonate, it offers excellent tensile strength, chemical resistance to many common solvents and acids, and superior dielectric properties. Its lightweight nature and non-magnetic characteristics make it ideal for environments where metal fasteners are unsuitable due to corrosion, conductivity, or interference concerns.

🧊 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 surfaces are clean and free from debris. 2. Insert the M18 polycarbonate hex head cap screw into the pre-drilled or tapped hole. 3. Tighten using a socket wrench or appropriately sized hex key, applying torque gradually to avoid overstressing the polycarbonate material.

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

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)
M18Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M18Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Applying excessive torque, leading to thread stripping or head fracture.Use a torque wrench and adhere to recommended torque values for polycarbonate fasteners, or use a hand-tightening approach with a final snug fit.
Using metal washers that can cause galvanic corrosion or damage the polycarbonate surface.Utilize compatible polycarbonate or nylon washers to maintain material integrity and prevent damage.

Common Applications

  • Chemical processing equipment
  • Electrical enclosures and assemblies
  • Marine and offshore installations

⚠️ Engineering Warnings

  • Avoid exposure to UV radiation for prolonged periods, which can degrade polycarbonate over time. Consider UV-resistant coatings if necessary.
  • While strong, polycarbonate is less rigid than metal. Ensure the application does not require extremely high clamping forces or resistance to impact that exceeds polycarbonate's capabilities.

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, Polycarbonate made from?

A: This Hex Head Cap Screw, Polycarbonate is manufactured from Polycarbonate.

Q: What are the main applications?

A: Chemical processing equipment, Electrical enclosures and assemblies, Marine and offshore installations.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 134mmAF24mm1/2"-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.