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

M4 x 115mm 316 Stainless Steel Hex Cap Screw

Expert Overview

This M4 x 115mm hex head cap screw, crafted from premium 316 stainless steel, offers exceptional corrosion resistance and strength. It is engineered for demanding industrial applications requiring reliable and long-lasting fastening solutions.

StandardASME B18
Material316 Stainless Steel
FinishPassivated
GradeN/A
SizeM4
Length115mm
Head Width11mm

Detailed Engineering Specifications

A high-performance industrial component, this M4 x 115mm hex head cap screw is manufactured from marine-grade 316 stainless steel, renowned for its superior resistance to pitting and crevice corrosion in chloride-rich environments. The M4 thread size ensures compatibility with standard metric fasteners, while the 115mm length provides ample reach for various joint designs. The 11mm head width facilitates secure engagement with standard hex wrenches or sockets, enabling efficient assembly and disassembly. Its robust construction makes it ideal for marine hardware, chemical processing equipment, food processing machinery, and other environments exposed to corrosive elements.

🧊 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 M4 hex wrench or socket. Ensure the wrench/socket size matches the 11mm head width for optimal torque application and to prevent head stripping. 2. Align the screw with the pre-drilled or tapped hole, ensuring threads engage smoothly without cross-threading. 3. Tighten the screw to the required torque specification for the application, taking care not to overtighten, which could compromise the integrity of the joined materials or the fastener itself.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardASME B18

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)
M4Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M4Varies 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 non-metric wrench, leading to cam-out and stripped screw heads.Always use a metric hex wrench or socket that precisely fits the 11mm head width.
Cross-threading the screw due to misalignment, damaging both the screw and the receiving thread.Manually start the screw by hand for several turns to ensure proper thread engagement before applying torque.
Over-tightening, which can lead to material deformation or screw fatigue.Consult engineering specifications for the correct torque value and use a calibrated torque wrench.

Common Applications

  • Marine hardware and boat building
  • Chemical processing plants
  • Food and beverage processing equipment
  • Outdoor structures exposed to the elements

⚠️ Engineering Warnings

  • Ensure compatibility with mating components before installation. 316 stainless steel is generally non-magnetic, but certain manufacturing processes can induce slight magnetism.
  • While highly corrosion-resistant, prolonged exposure to certain aggressive chemicals or extreme galvanic corrosion conditions may still affect the material. Verify material suitability for specific environmental factors.

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 building, Chemical processing plants, Food and beverage processing equipment, Outdoor structures exposed to the elements.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 115mmAF11mm1/2"-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.