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M5 x 25mm 316 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for superior corrosion resistance and strength, this M5 x 25mm hex head cap screw is crafted from premium 316 stainless steel. Its robust design ensures secure and reliable fastening in critical applications.

StandardISO 9001
Material316 Stainless Steel
FinishPassivated
GradeN/A
SizeM5
Length25mm
Head Width33mm

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this M5 x 25mm hex head cap screw boasts a substantial 33mm head width for enhanced torque application and load distribution. Constructed from marine-grade 316 stainless steel, it offers exceptional resistance to pitting, crevice corrosion, and general corrosion, particularly in aggressive chemical and saltwater environments. The material's inherent toughness and tensile strength make it ideal for structural assemblies, marine hardware, food processing equipment, and outdoor infrastructure where durability and longevity 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. Select the appropriate wrench or socket for the M5 hex head. 2. Thread the cap screw into the pre-tapped hole or nut, ensuring smooth engagement. 3. Tighten to the required torque specification using a calibrated torque wrench to prevent over-stressing the material or fastener.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

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)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using a standard steel fastener in corrosive environments.Always specify 316 stainless steel for applications exposed to moisture, saltwater, or chemicals to prevent premature corrosion and failure.
Over-tightening the fastener, leading to thread stripping or head damage.Utilize a torque wrench and adhere to recommended torque values for M5 fasteners to ensure optimal clamping force without damaging the components.

Common Applications

  • Marine hardware and vessel construction
  • Chemical processing equipment
  • Food and beverage industry machinery
  • Outdoor structural components
  • Saltwater-exposed infrastructure

⚠️ Engineering Warnings

  • Ensure compatibility with the mating component's material to prevent galvanic corrosion.
  • Avoid cross-threading during installation; engage threads carefully and smoothly.

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, 316 Stainless Steel made from?

A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine hardware and vessel construction, Chemical processing equipment, Food and beverage industry machinery, Outdoor structural components, Saltwater-exposed infrastructure.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 25mmAF33mm1/2"-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.