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M18 x 14mm 316 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for superior corrosion resistance and high tensile strength, this M18 x 14mm hex head cap screw is manufactured from premium 316 stainless steel, ensuring exceptional performance in harsh conditions.

StandardDIN 933
Material316 Stainless Steel
FinishGalvanized
GradeN/A
SizeM18
Length14mm
Head Width23mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this M18 x 14mm hex head cap screw boasts a nominal diameter of M18 and a length of 14mm, with a head width of 23mm. Constructed from 316 stainless steel, it offers excellent resistance to pitting and crevice corrosion, even in chloride-rich environments. This material composition, featuring molybdenum, enhances its durability and suitability for applications exposed to saltwater, chemicals, and elevated temperatures, making it a reliable choice for marine, chemical processing, and food industry applications requiring robust and long-lasting fastening solutions.

🧊 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:Yes

Installation Procedure

1. Select the appropriate torque wrench and socket for the M18 hex head. 2. Ensure the mating threads are clean and free of debris. 3. Apply the specified torque to the cap screw, avoiding over-tightening to prevent thread stripping or material fatigue.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardDIN 933

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / ExposedExcellent
Marine / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using standard stainless steel in corrosive environments.Always specify 316 stainless steel for marine, chemical, or food processing applications to prevent premature corrosion.
Over-torquing the fastener, leading to thread damage or component failure.Consult engineering specifications for the correct torque value and use a calibrated torque wrench.

Common Applications

  • Marine hardware and structural components
  • Chemical processing equipment
  • Food and beverage industry machinery
  • Offshore oil and gas platforms
  • Wastewater treatment facilities

⚠️ Engineering Warnings

  • Ensure the material compatibility of mating components to prevent galvanic corrosion when used with dissimilar metals.
  • For critical load-bearing applications, verify the suitability of the M18 size and 14mm length based on your specific engineering calculations.

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, 316 Stainless Steel made from?

A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine hardware and structural components, Chemical processing equipment, Food and beverage industry machinery, Offshore oil and gas platforms, Wastewater treatment facilities.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 14mmAF23mm1/2"-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.