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M13x31mm Nylon Hex Head Cap Screw - Corrosion Resistant

Expert Overview

Engineered for demanding applications, this M13x31mm Hex Head Cap Screw is crafted from high-performance nylon. Offering superior corrosion resistance and electrical insulation, it's a reliable fastening solution for challenging environments.

StandardASTM A106
MaterialNylon
FinishPassivated
GradeN/A
SizeM13
Length31mm
Head Width21mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M13 Hex Head Cap Screw boasts a nominal diameter of M13 and a functional length of 31mm. The head features a precisely machined 21mm width for optimal wrench engagement. Constructed from high-grade nylon, it exhibits excellent dielectric strength, chemical resistance to many common solvents and acids, and a low coefficient of friction. Its lightweight nature and non-magnetic properties make it ideal for applications where weight reduction or electromagnetic interference is a concern. This fastener is designed for environments prone to corrosion or requiring electrical isolation, ensuring long-term performance and safety.

🧊 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 the appropriate wrench size (21mm for the head). 2. Align the screw with the pre-drilled or tapped hole. 3. Hand-tighten initially to ensure proper thread engagement. 4. Use the wrench to tighten the screw to the desired torque, avoiding over-tightening which can strip the nylon threads.

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)
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
Using excessive torque, leading to thread stripping or head fracture in the nylon material.Apply appropriate torque values for nylon fasteners, which are significantly lower than those for metal screws. Consult torque charts specific to nylon or use a torque-limiting tool.
Using a wrench that does not precisely fit the 21mm head width, potentially damaging the head.Always use a properly sized wrench or socket that fully engages the hex head to prevent cam-out and damage to the fastener.

Common Applications

  • Electrical enclosure assembly
  • Chemical processing equipment
  • Marine and coastal applications
  • Medical device manufacturing
  • Lightweight structural components

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications above 80°C (176°F).
  • Avoid prolonged exposure to strong oxidizing agents or UV radiation without protective measures.

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 enclosure assembly, Chemical processing equipment, Marine and coastal applications, Medical device manufacturing, Lightweight structural components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 31mmAF21mm1/2"-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.