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M18 x 77mm Nylon Hex Head Cap Screw | Fastening Solutions

Expert Overview

This M18 x 77mm Nylon Hex Head Cap Screw offers superior corrosion resistance and a lightweight design. Its robust nylon construction ensures reliable performance in demanding environments, making it ideal for various industrial applications.

StandardISO 9001
MaterialNylon
FinishAnodized
GradeN/A
SizeM18
Length77mm
Head Width8mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M18 x 77mm Nylon Hex Head Cap Screw features a nominal diameter of 18mm and a length of 77mm. The hex head provides a standardized interface for torque application, with a head width of 8mm for appropriate tooling. Constructed from high-performance Nylon 6/6, it exhibits excellent dielectric strength, resistance to many chemicals and solvents, and a high tensile strength for its density. Its non-conductive properties make it suitable for electrical insulation, while its lightweight nature reduces overall assembly weight. The material's inherent flexibility can also absorb vibration, contributing to a more stable assembly.

🧊 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 M18 sized tool (e.g., wrench or socket) for engaging the hex head. 2. Insert the cap screw into the pre-drilled or tapped hole. 3. Apply consistent torque to secure the assembly, 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 StandardISO 9001

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)
M18Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M18Varies 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 stripping of the nylon threads or deformation of the head.Refer to torque specifications for nylon fasteners or use a torque-limiting driver. Hand-tighten and then apply a quarter-turn if specifications are unavailable.
Attempting to use standard metal fastener torque values, which are significantly higher than nylon can withstand.Consult nylon fastener torque charts or manufacturer guidelines for safe and effective tightening procedures.

Common Applications

  • Electrical enclosures and panel mounting
  • Chemical processing equipment
  • Light-duty structural assembly
  • Corrosive environments where metal fasteners would degrade

⚠️ Engineering Warnings

  • Not recommended for high-load structural applications requiring significant clamping force or shear strength.
  • Avoid prolonged exposure to UV radiation or extreme temperatures beyond the material's operational limits, as this may degrade performance 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, Nylon made from?

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

Q: What are the main applications?

A: Electrical enclosures and panel mounting, Chemical processing equipment, Light-duty structural assembly, Corrosive environments where metal fasteners would degrade.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 77mmAF8mm1/2"-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.