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M11x129mm 316 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for superior strength and corrosion resistance, this M11x129mm hex head cap screw is manufactured from premium 316 stainless steel. Ideal for critical applications requiring exceptional durability and longevity in harsh conditions.

StandardDIN 933
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM11
Length129mm
Head Width36mm

Detailed Engineering Specifications

A high-performance industrial component, this M11x119mm hex head cap screw offers robust fastening capabilities. Crafted from 316 stainless steel, it provides excellent resistance to pitting, crevice corrosion, and general corrosion, particularly in marine and chemical environments. The M11 thread pitch ensures secure engagement, while the 129mm length and 36mm head width facilitate efficient assembly and disassembly with standard tooling. This specification guarantees reliable performance under significant tensile and shear loads, making it suitable for a wide array of demanding industrial applications.

🧊 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 torque wrench and socket size for the M11 hex head. 2. Clean the threads of both the screw and the mating component to remove any debris or contaminants. 3. Thread the cap screw into the designated hole until snug, then apply torque according to the assembly specifications, ensuring even pressure distribution.

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)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)
M11Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M11Varies 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 excessive torque, leading to thread stripping or fastener failure.Always adhere to the recommended torque specifications for the material and application.
Cross-threading the screw, which damages both the screw and the mating component threads.Start threading by hand to ensure proper alignment before applying any tool.

Common Applications

  • Marine hardware and offshore equipment
  • Chemical processing plants
  • Food and beverage industry equipment
  • General industrial machinery assembly

⚠️ Engineering Warnings

  • Ensure compatibility with mating threads to prevent damage.
  • For critical applications, consult engineering specifications for appropriate torque values and material suitability.

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 offshore equipment, Chemical processing plants, Food and beverage industry equipment, General industrial machinery assembly.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 129mmAF36mm1/2"-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.