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M11 x 148mm 304 Stainless Steel Hex Cap Screw

Expert Overview

Engineered for robust fastening in harsh conditions, this M11 x 148mm hex head cap screw boasts superior 304 stainless steel construction. It offers exceptional corrosion resistance and mechanical integrity for critical industrial assemblies.

StandardASTM A106
Material304 Stainless Steel
FinishPassivated
GradeN/A
SizeM11
Length148mm
Head Width17mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this M11 x 148mm hex head cap screw features a robust 17mm head width, ensuring reliable torque transfer and secure fastening. Manufactured from high-grade 304 stainless steel, it provides excellent resistance to corrosion, rust, and chemical degradation, making it ideal for marine, chemical processing, and outdoor structural applications. Its precise threading and substantial length facilitate secure connections in assemblies requiring extended reach and significant clamping force, meeting stringent industry standards for mechanical performance and durability.

🧊 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. Ensure the mating threads are clean and free from debris or damage. 2. Hand-tighten the screw to engage all threads, ensuring it is properly seated. 3. Utilize a calibrated torque wrench to tighten the screw to the specified torque value for the application, 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)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)
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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size wrench, leading to head stripping.Always use a wrench that precisely matches the 17mm head width to ensure proper engagement and prevent damage.
Cross-threading the screw, causing damage to both the screw and the mating component.Carefully align the screw with the pre-drilled hole and begin threading by hand to confirm proper alignment before applying torque.

Common Applications

  • Structural Steel Connections
  • Machinery Assembly
  • Marine Hardware Installation

⚠️ Engineering Warnings

  • Do not exceed the recommended torque specifications for the mating component to prevent structural failure or thread damage.
  • Ensure compatibility of 304 stainless steel with the intended operating environment to prevent galvanic corrosion if used with dissimilar metals.

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 Assembly, Marine Hardware Installation.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 148mmAF17mm1/2"-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.