Home > Fastening & Joining > Hex Head Cap Screw, 304 Stainless Steel

M18 x 110mm 304 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for superior performance in challenging environments, this M18 x 110mm 304 Stainless Steel Hex Head Cap Screw provides robust fastening solutions. Its corrosion resistance ensures longevity in demanding applications.

StandardISO 9001
Material304 Stainless Steel
FinishGalvanized
GradeN/A
SizeM18
Length110mm
Head Width28mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this M18 x 110mm hex head cap screw is manufactured from premium 304 stainless steel, offering exceptional corrosion resistance and a tensile strength suitable for significant loads. The precise M18 thread ensures secure engagement with M18 nuts or tapped holes, while the 110mm length provides ample grip for thicker materials. The 28mm head width, when engaged with a standard M18 hex socket or wrench, allows for optimal torque application without stripping. This specification makes it ideal for structural assemblies, machinery, marine hardware, and outdoor installations where durability and resistance to environmental factors are paramount.

🧊 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 appropriate M18 nut or tapped hole. 2. Ensure threads are clean and free of debris. 3. Engage the cap screw and tighten to the required torque specification using a properly sized hex socket or wrench (28mm head width).

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

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)
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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using an undersized wrench, leading to head stripping.Always use a wrench or socket that precisely matches the 28mm head width of the cap screw.
Over-tightening, which can damage threads or compromise material integrity.Consult torque charts for M18 fasteners in 304 stainless steel and tighten to the recommended specification.

Common Applications

  • Industrial machinery assembly
  • Marine hardware and structures
  • Outdoor structural components

⚠️ Engineering Warnings

  • Ensure compatibility of mating threads before installation.
  • Avoid exposing to aggressive chemicals or environments that may exceed 304 stainless steel's corrosion resistance capabilities without additional 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, 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: Industrial machinery assembly, Marine hardware and structures, Outdoor structural components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 110mmAF28mm1/2"-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.