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M8 x 31mm Nylon Hex Head Cap Screw | Corrosion Resistant

Expert Overview

This M8 x 31mm Nylon Hex Head Cap Screw offers excellent chemical resistance and electrical insulation. Its lightweight, non-corrosive properties make it ideal for sensitive environments and specialized assemblies.

StandardDIN 933
MaterialNylon
FinishAnodized
GradeN/A
SizeM8
Length31mm
Head Width22mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M8 x 31mm Hex Head Cap Screw features a durable nylon construction, offering superior resistance to many chemicals, solvents, and moisture. The M8 thread provides robust engagement, while the 31mm length ensures adequate grip for various joint thicknesses. The 22mm head width allows for secure tightening with standard hex drivers, delivering consistent torque without stripping. This material is non-conductive and exhibits excellent dielectric strength, making it suitable for electrical applications.

🧊 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 hex driver or wrench for the M8 thread. 2. Align the screw with the pre-tapped hole or mating fastener. 3. Rotate the screw clockwise to engage the threads, applying consistent torque until snug. 4. Avoid overtightening to prevent thread stripping or 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)
M8Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M8Varies 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
Overtightening the nylon screw, which can lead to thread stripping or cracking of the screw head.Use a torque wrench to apply the manufacturer-recommended torque specification for nylon fasteners, or tighten until snug and then an additional quarter turn.
Using the wrong size hex driver, potentially damaging the screw head and making removal difficult.Always verify the correct hex driver size (e.g., 8mm or 5/16 inch for M8, depending on the driver standard) before attempting to tighten or loosen.

Common Applications

  • Electrical enclosures and control panels
  • Medical equipment assemblies
  • Corrosive chemical processing environments
  • Lightweight structural components

⚠️ Engineering Warnings

  • Nylon materials can degrade under prolonged exposure to UV radiation; consider UV-resistant variants for outdoor applications.
  • While chemically resistant, test compatibility with specific aggressive chemicals before widespread use, as some solvents can affect nylon properties.

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, Nylon made from?

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

Q: What are the main applications?

A: Electrical enclosures and control panels, Medical equipment assemblies, Corrosive chemical processing environments, Lightweight structural components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 31mmAF22mm1/2"-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.