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M9 x 61mm 316 Stainless Steel Hex Cap Screw

Expert Overview

This M9 x 61mm hex head cap screw, crafted from superior 316 stainless steel, offers exceptional corrosion resistance. Engineered with a 27mm head width for robust torque application, it's ideal for demanding environments.

StandardASTM A106
Material316 Stainless Steel
FinishPlain
GradeN/A
SizeM9
Length61mm
Head Width27mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M9 x 61mm hex head cap screw features a substantial 27mm head width, ensuring optimal tool engagement and torque transfer. Constructed from premium 316 stainless steel, it boasts superior resistance to pitting, crevice corrosion, and general corrosion, particularly in saline or acidic environments. This material composition also provides excellent mechanical strength and durability, making it suitable for applications requiring long-term integrity and resistance to environmental degradation. Its precise threading ensures secure and stable fastening in a wide range of industrial and marine settings.

🧊 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 socket or wrench matching the 27mm hex head. 2. Ensure mating threads are clean and free from debris or damage. 3. Apply desired torque to secure the fastener, avoiding over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASTM A106

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)
M9Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M9Varies 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 wrench that does not fully engage the hex head.Utilize a correctly sized socket or wrench to ensure full engagement and prevent cam-out, which can damage the fastener head.
Cross-threading the screw during installation.Carefully align the screw with the mating thread and begin turning by hand to verify proper thread engagement before applying torque.

Common Applications

  • Marine hardware and boat fittings
  • Chemical processing equipment
  • Food and beverage processing machinery

⚠️ Engineering Warnings

  • Ensure compatibility with the mating thread size and pitch.
  • While 316 stainless steel offers excellent corrosion resistance, extreme chemical or galvanic conditions may still cause degradation. Consult material compatibility charts if unsure.

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 boat fittings, Chemical processing equipment, Food and beverage processing machinery.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 61mmAF27mm1/2"-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.