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M6 x 28mm 304 Stainless Steel Hex Head Cap Screw

Expert Overview

This M6 x 28mm Hex Head Cap Screw, crafted from premium 304 Stainless Steel, offers superior corrosion resistance and robust fastening capabilities for a wide range of industrial applications.

StandardDIN 933
Material304 Stainless Steel
FinishPassivated
GradeN/A
SizeM6
Length28mm
Head Width19mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M6 x 28mm Hex Head Cap Screw features a robust 304 Stainless Steel construction, renowned for its excellent tensile strength and exceptional resistance to rust and corrosion, even in harsh environments. The precisely machined M6 thread ensures secure engagement with compatible nuts and tapped holes, while the 28mm length provides ample grip for medium-duty assemblies. The 19mm head width allows for efficient torque application with standard hex wrenches or sockets. This fastener is ideally suited for applications demanding long-term durability, such as marine hardware, food processing equipment, and outdoor structural components.

🧊 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 wrench or socket size for the M6 hex head. 2. Ensure the mating threads or tapped hole are clean and free of debris. 3. Hand-tighten the screw initially to confirm proper alignment and prevent cross-threading. 4. Using the wrench or socket, tighten the screw to the required torque specification for the application, ensuring a secure and stable joint.

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)
M6Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M6Varies 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 or socket, leading to head stripping.Always use the correct size wrench or socket (19mm for this screw) to prevent damage to the hex head.
Cross-threading the screw by forcing it into the mating thread.Start threading by hand to ensure proper alignment before applying torque.
Over-tightening, which can lead to thread damage or material fatigue.Adhere to recommended torque specifications for the application and materials being joined.

Common Applications

  • Marine and Coastal Hardware
  • Food Processing Equipment
  • Outdoor Structural Assemblies
  • Automotive and Aerospace Components

⚠️ Engineering Warnings

  • Always wear appropriate safety glasses when working with fasteners.
  • Ensure the mating materials are compatible with 304 stainless steel to prevent galvanic corrosion.
  • Do not exceed the recommended torque limits for the screw and the materials being fastened.

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: Marine and Coastal Hardware, Food Processing Equipment, Outdoor Structural Assemblies, Automotive and Aerospace Components.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 28mmAF19mm1/2"-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.