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M7x73mm Polycarbonate Hex Cap Screw | Corrosion Resistant

Expert Overview

This M7 x 73mm Hex Head Cap Screw features a robust polycarbonate construction. Ideal for applications requiring non-conductivity, chemical resistance, and a lightweight fastening solution.

StandardASTM A106
MaterialPolycarbonate
FinishPlain
GradeN/A
SizeM7
Length73mm
Head Width24mm

Detailed Engineering Specifications

Built to exacting engineering tolerances, this M7 x 73mm Hex Head Cap Screw is manufactured from high-performance polycarbonate. Its excellent dielectric strength makes it suitable for electrical applications, while its inherent resistance to many chemicals and corrosive environments ensures longevity where metal fasteners would degrade. The M7 thread size and 73mm length provide specific dimensional control, and the 24mm head width offers ample surface area for torque application without overtightening. This material's impact resistance further enhances its suitability for vibration-prone settings and environments where light impacts are anticipated.

🧊 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 appropriate torque wrench calibrated for polycarbonate. 2. Insert screw into pre-drilled and tapped hole, ensuring threads align. 3. Tighten screw to specified torque, avoiding over-torquing to prevent material deformation.

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)
M7Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M7Varies 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-torquing the screw, leading to stripping or cracking of the polycarbonate head.Use a calibrated torque wrench and adhere to recommended torque specifications for polycarbonate fasteners. Begin with a lower torque setting and gradually increase.
Using metal tools which can scratch or damage the polycarbonate surface.Utilize tools with soft tips or ensure proper technique to prevent surface damage during installation and removal.

Common Applications

  • Electrical enclosures and equipment
  • Medical devices and instrumentation
  • Corrosive chemical processing environments

⚠️ Engineering Warnings

  • Avoid exposure to extreme temperatures beyond the material's rated operating range.
  • Do not use in structural load-bearing applications where high tensile strength is critical.

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: Electrical enclosures and equipment, Medical devices and instrumentation, Corrosive chemical processing environments.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 73mmAF24mm1/2"-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.