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

M5 x 83mm 304 Stainless Steel Hex Cap Screw

Expert Overview

This M5 x 83mm Hex Head Cap Screw, crafted from premium 304 stainless steel, offers superior corrosion resistance and tensile strength. Its robust design ensures secure fastening in diverse industrial and structural applications.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM5
Length83mm
Head Width27mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M5 x 83mm Hex Head Cap Screw features a substantial 27mm head width for optimal torque application and secure seating. Constructed from grade 304 stainless steel, it provides exceptional resistance to corrosion and oxidation, making it suitable for environments exposed to moisture, chemicals, and varying temperatures. The metric M5 thread pitch ensures compatibility with standard metric components. Its substantial length of 83mm allows for use in thicker material assemblies or where extended reach is required. This fastener is designed to withstand significant shear and tensile loads, making it a dependable choice for critical structural connections and heavy-duty equipment assembly.

🧊 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 size and type of wrench or socket to fit the 27mm hex head. 2. Ensure the mating threads are clean and free from debris to prevent cross-threading. 3. Apply consistent torque until the desired clamping force is achieved, avoiding overtightening to prevent thread stripping or fastener damage.

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 wrench, leading to head damage or incomplete tightening.Always use a wrench or socket that precisely matches the 27mm hex head for optimal torque transfer and fastener integrity.
Overtightening, which can strip threads or compromise the structural integrity of the fastener or mating component.Apply torque gradually and stop once the required clamping force is met. Consult torque charts for specific applications if necessary.
Failure to clean mating threads before installation, increasing the risk of cross-threading and damaging both the screw and the receiving component.Thoroughly inspect and clean both the screw's threads and the tapped hole or nut before starting assembly.

Common Applications

  • Structural steel connections
  • Machinery and equipment assembly
  • Marine and outdoor applications

⚠️ Engineering Warnings

  • Ensure compatibility with the mating thread standard (Metric M5).
  • Avoid use in environments with aggressive acids or chlorides that may exceed the corrosion resistance of 304 stainless steel without specific testing.

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, Machinery and equipment assembly, Marine and outdoor applications.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 83mmAF27mm1/2"-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.