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

M22 x 118mm 304 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for robust fastening, this M22 x 118mm hex head cap screw boasts superior strength and corrosion resistance. Crafted from premium 304 stainless steel, it ensures reliable performance in diverse environments.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM22
Length118mm
Head Width29mm

Detailed Engineering Specifications

Specified by design engineers worldwide, this M22 x 118mm hex head cap screw is manufactured from high-grade 304 stainless steel, offering excellent resistance to corrosion and a wide range of chemicals, making it suitable for marine, food processing, and outdoor applications. The metric thread profile ensures precise engagement, while the generous 118mm length provides ample reach for joining thicker materials. Its substantial 29mm hex head width allows for secure tightening with standard tooling, delivering significant clamping force and long-term durability under demanding operational stresses.

🧊 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 wrench size (29mm) for the hex head. 2. Thread the cap screw into the pre-tapped or pre-drilled hole, ensuring smooth engagement. 3. Tighten to the specified torque value, avoiding over-tightening to prevent thread damage or material deformation.

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)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)
M22Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M22Varies 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 the wrong size wrench, leading to stripped hex head.Always use a wrench that precisely fits the 29mm hex head to ensure proper torque application and prevent damage.
Applying excessive torque, causing thread stripping or fastener failure.Consult engineering drawings or torque charts for the correct tightening specification for M22 fasteners in the intended material.

Common Applications

  • Structural assembly in corrosive environments
  • Marine hardware and equipment
  • Food processing machinery and infrastructure

⚠️ Engineering Warnings

  • Ensure material compatibility before use in highly aggressive chemical environments.
  • Always use calibrated torque wrenches for critical applications to achieve consistent and reliable clamping force.

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 corrosive environments, Marine hardware and equipment, Food processing machinery and infrastructure.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 118mmAF29mm1/2"-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.