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

Polycarbonate Hex Head Cap Screw M13x28mm - Lightweight & Durable

Expert Overview

This M13x28mm Hex Head Cap Screw, crafted from robust polycarbonate, offers exceptional impact resistance and chemical inertness. Its non-conductive properties make it ideal for applications where electrical insulation is critical, ensuring secure and reliable fastening.

StandardASME B18
MaterialPolycarbonate
FinishAnodized
GradeN/A
SizeM13
Length28mm
Head Width34mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M13x28mm Hex Head Cap Screw features a 34mm head width, ensuring broad load distribution. Composed of high-performance polycarbonate, it exhibits excellent tensile strength (typically 70-80 MPa) and a low coefficient of friction. Its inherent dielectric strength (up to 20 kV/mm) and resistance to a wide range of chemicals, including acids and alkalis, make it a superior choice for corrosive environments and electrical assemblies. The material's lightweight nature (specific gravity ~1.2) contributes to reduced overall assembly weight, while its operating temperature range (-40°C to +120°C) ensures performance across diverse industrial settings.

🧊 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 from debris. 2. Manually thread the M13x28mm polycarbonate cap screw into the receptacle until snug. 3. Tighten using an appropriate hex wrench, applying torque gradually to avoid overstressing the polycarbonate material. Refer to torque charts for specific applications.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASME B18

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)
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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening the polycarbonate screw, leading to material deformation or stripping of threads.Utilize a torque wrench and adhere to recommended torque specifications for M13 polycarbonate fasteners to prevent overstressing the material.
Using metal tools that can scratch or damage the polycarbonate surface.Employ tools made of softer materials or ensure proper care to prevent surface damage during installation and handling.

Common Applications

  • Chemical processing equipment
  • Electrical enclosures and assemblies
  • Medical device manufacturing

⚠️ Engineering Warnings

  • Avoid exposure to solvents that may degrade polycarbonate.
  • Do not use in applications requiring high shear strength or extreme temperature resistance beyond its specified limits.

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, Medical device manufacturing.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 28mmAF34mm1/2"-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.