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M9x28mm Polycarbonate Hex Head Cap Screw | Fastening

Expert Overview

Engineered for demanding environments, this M9x28mm hex head cap screw is constructed from high-strength polycarbonate. It offers exceptional chemical resistance and non-conductive properties for secure and reliable fastening.

StandardDIN 933
MaterialPolycarbonate
FinishZinc Plated
GradeN/A
SizeM9
Length28mm
Head Width23mm

Detailed Engineering Specifications

A high-performance industrial component, this M9x28mm hex head cap screw features a robust polycarbonate construction, offering superior resistance to a wide range of chemicals, solvents, and corrosive agents. With a head width of 23mm, it provides ample surface area for torque application while its non-conductive nature makes it ideal for electrical insulation applications. Its lightweight yet durable design ensures reliable performance in environments where metal fasteners may degrade or interfere with sensitive equipment. Ideal for marine, food processing, medical, and chemical processing industries.

🧊 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 engage the threads properly. 3. Using an appropriate hex driver, tighten the screw to the recommended torque specification, avoiding over-tightening to prevent material deformation.

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

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)
M9Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M9Varies 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
Over-tightening the polycarbonate screwUse a torque wrench to adhere to specified torque limits and prevent stripping or cracking of the polycarbonate material.
Using the screw in applications exceeding its temperature or chemical resistance limitsConsult the material datasheet for the specific operating temperature range and chemical compatibility of polycarbonate before installation.

Common Applications

  • Chemical processing equipment
  • Medical device assemblies
  • Food and beverage machinery
  • Corrosion-sensitive environments
  • Electrical insulation applications

⚠️ Engineering Warnings

  • Not suitable for high-stress structural applications where metal fasteners are typically required.
  • Avoid prolonged exposure to UV radiation, which can degrade polycarbonate over time.

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, Medical device assemblies, Food and beverage machinery, Corrosion-sensitive environments, Electrical insulation applications.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 28mmAF23mm1/2"-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.