Home > Fastening & Joining > Hex Head Cap Screw, 316 Stainless Steel

M5 x 117mm 316 Stainless Steel Hex Cap Screw

Expert Overview

This M5 x 117mm Hex Head Cap Screw, crafted from premium 316 stainless steel, offers superior corrosion resistance. Its robust design ensures secure fastening in demanding environments, making it a critical component for reliable assemblies.

StandardISO 9001
Material316 Stainless Steel
FinishPassivated
GradeN/A
SizeM5
Length117mm
Head Width30mm

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this M5 x 117mm Hex Head Cap Screw features a substantial 30mm head width for optimal torque application and load distribution. Constructed from marine-grade 316 stainless steel, it exhibits exceptional resistance to pitting and crevice corrosion, even in aggressive saline or chemical-laden atmospheres. This material's inherent strength and ductility make it suitable for applications requiring long-term durability and resistance to fatigue in harsh operational conditions, including food processing, chemical plants, and coastal infrastructure.

🧊 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. Clean the mating surfaces and threads of both the screw and the receiving component. 2. Apply a suitable thread lubricant or anti-seize compound if specified for the application. 3. Insert the Hex Head Cap Screw and engage the threads by hand for at least two full turns to prevent cross-threading. 4. Tighten the screw using an appropriately sized hex key or socket wrench to the manufacturer's specified torque, ensuring even pressure.

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
Over-tightening the screw, leading to thread stripping or fastener failure.Always adhere to the recommended torque specifications for the specific application and mating materials. Utilize a calibrated torque wrench.
Using the wrong size tool, which can round off the hex head and make removal difficult.Ensure the hex key or socket wrench is the correct size (e.g., a 4mm hex key for an M5 screw, though head width is specified as 30mm). A snug fit is essential.
Not cleaning mating surfaces, which can introduce contaminants and compromise the integrity of the joint.Thoroughly clean all threads and mating surfaces of any debris, oils, or old thread-locking compounds before assembly.

Common Applications

  • Marine hardware and vessel construction
  • Chemical processing equipment and piping
  • Food and beverage processing machinery
  • Pharmaceutical manufacturing equipment
  • Outdoor and corrosive environment structures

⚠️ Engineering Warnings

  • Ensure material compatibility with the surrounding environment to prevent galvanic corrosion.
  • Do not exceed the recommended torque values to prevent fastener damage or thread stripping.
  • Always wear appropriate personal protective equipment (PPE) during installation.

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 and piping, Food and beverage processing machinery, Pharmaceutical manufacturing equipment, Outdoor and corrosive environment structures.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 117mmAF30mm1/2"-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.