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M5 x 53mm 304 Stainless Steel Hex Cap Screws (Pack of 100)

Expert Overview

Engineered for demanding environments, these M5 x 53mm hex head cap screws are crafted from premium 304 stainless steel. Offering superior corrosion resistance and robust performance, they are the ideal choice for secure and lasting connections.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM5
Length53mm
Head Width25mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M5 x 53mm hex head cap screw features a nominal diameter of M5 and a length of 53mm. The head width measures 25mm, providing substantial surface area for torque application. Constructed from 304 stainless steel, it offers excellent resistance to corrosion, rust, and staining in various atmospheric and chemical conditions, making it suitable for outdoor, marine, food processing, and general industrial applications where hygiene and durability are paramount. The material's inherent strength and ductility ensure reliable fastening without compromising integrity under moderate stress.

🧊 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 tool (e.g., socket wrench or hex key) matching the M5 hex head size. 2. Ensure the mating threads are clean and free of debris to prevent galling. 3. Insert the screw into the designated fastening point and tighten progressively to the required torque specification, avoiding over-tightening.

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)
M5Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M5Varies 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 hex key or socket, leading to head damage or incomplete tightening.Always verify the correct hex key or socket size for the M5 head before installation.
Cross-threading the screw, which can damage both the screw and the mating part.Start threading by hand to ensure proper alignment before applying any torque.

Common Applications

  • Marine hardware and fittings
  • Outdoor structural components
  • Food processing equipment assembly
  • General industrial machinery
  • Architectural fixtures

⚠️ Engineering Warnings

  • Ensure appropriate torque is applied to avoid stripping threads or fracturing the fastener.
  • While 304 stainless steel offers excellent corrosion resistance, prolonged exposure to highly aggressive chemicals or saltwater may require specialized alloys or coatings.

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 hardware and fittings, Outdoor structural components, Food processing equipment assembly, General industrial machinery, Architectural fixtures.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 53mmAF25mm1/2"-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.