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

M22x52mm 304 Stainless Steel Hex Head Cap Screw

Expert Overview

Engineered for superior strength and corrosion resistance, this M22x52mm hex head cap screw in 304 stainless steel is the ideal choice for critical, high-load applications requiring reliable and enduring fastening solutions.

StandardASME B18
Material304 Stainless Steel
FinishPlain
GradeN/A
SizeM22
Length52mm
Head Width31mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this M22x52mm hex head cap screw offers exceptional mechanical integrity owing to its full 304 stainless steel construction. The material provides excellent resistance to a wide range of corrosive environments, including atmospheric, mild chemical, and marine conditions, ensuring longevity and performance in demanding settings. With a nominal diameter of M22 and a length of 52mm, it is designed for secure engagement with M22 tapped holes or nuts. The generous 31mm head width ensures effective torque transfer for tightening, minimizing the risk of slippage or deformation under significant load. This specification makes it suitable for structural assemblies, heavy machinery, and outdoor infrastructure where durability and resistance to environmental degradation 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. Ensure the mating threads are clean and free of debris. 2. Engage the cap screw with the corresponding tapped hole or nut. 3. Apply appropriate torque using a calibrated wrench to achieve the desired clamping force, avoiding over-tightening.

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)
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 head stripping.Utilize a wrench with the correct 31mm head width for optimal grip and torque application.
Cross-threading the screw into the mating component.Start threading the screw by hand to ensure proper alignment before applying tool torque.

Common Applications

  • Structural steel connections
  • Heavy machinery assembly
  • Marine and offshore equipment

⚠️ Engineering Warnings

  • Ensure compatibility with mating threads to prevent damage.
  • Do not exceed the recommended torque limits for the specific application to avoid material fatigue.

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 steel connections, Heavy machinery assembly, Marine and offshore equipment.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 52mmAF31mm1/2"-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.