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M14 x 40mm 304 Stainless Steel Hex Head Cap Screw

Expert Overview

Engineered for superior strength and corrosion resistance, this M14 x 40mm hex head cap screw, crafted from robust 304 stainless steel, ensures reliable fastening in challenging applications.

StandardASME B18
Material304 Stainless Steel
FinishGalvanized
GradeN/A
SizeM14
Length40mm
Head Width36mm

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this M14 x 40mm hex head cap screw is manufactured from premium 304 stainless steel, renowned for its excellent corrosion resistance and tensile strength. The M14 thread provides a substantial load-bearing capacity, while the 40mm length offers versatility for various assembly needs. The generous 36mm head width ensures sufficient surface area for torque application and load distribution, making it suitable for demanding industrial environments and applications requiring long-term durability against environmental factors.

🧊 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 size for the M14 hex head. 2. Ensure mating threads are clean and free of debris. 3. Tighten the cap screw to the manufacturer's recommended torque specification for the application, ensuring even tension.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASME B18

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)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°C)
Thermal Expansion
Typical for Material Class

Recommended Torque Values

Bolt SizeDry Torque (ft-lbs)Lubricated Torque (ft-lbs)
M14Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M14Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening the screw, leading to thread stripping or material deformation.Utilize a calibrated torque wrench and adhere to the specified torque values for the materials being joined.
Using the wrong tool size, resulting in damaged hex head corners and difficulty in proper tightening.Always use a socket or wrench that precisely fits the M14 hex head (typically 22mm or 24mm, confirm based on exact standards).

Common Applications

  • Structural assembly in marine environments
  • Outdoor machinery and equipment construction
  • Food processing and chemical plant installations

⚠️ Engineering Warnings

  • Ensure compatibility of mating materials to prevent galvanic corrosion.
  • Always wear appropriate personal protective equipment (PPE) when handling and installing fasteners.

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, 304 Stainless Steel made from?

A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Structural assembly in marine environments, Outdoor machinery and equipment construction, Food processing and chemical plant installations.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 40mmAF36mm1/2"-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.