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

M12 x 61mm 316 Stainless Steel Hex Head Cap Screw

Expert Overview

Engineered for superior performance, this M12 x 61mm Hex Head Cap Screw, crafted from premium 316 stainless steel, offers exceptional corrosion resistance and strength for critical industrial applications.

StandardASTM A106
Material316 Stainless Steel
FinishPlain
GradeN/A
SizeM12
Length61mm
Head Width30mm

Detailed Engineering Specifications

A proven choice for industrial professionals, this M12 x 61mm Hex Head Cap Screw is manufactured from high-grade 316 stainless steel, renowned for its superior resistance to pitting, crevice corrosion, and general corrosion, particularly in chloride-rich environments. The M12 nominal diameter and 61mm length provide robust fastening capabilities, while the substantial 30mm head width ensures excellent torque transfer and load distribution. Its inherent toughness and durability make it ideal for applications subject to extreme temperatures, aggressive chemicals, or constant exposure to moisture, such as in marine hardware, food processing equipment, chemical plants, and wastewater treatment systems.

🧊 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 mating threads are clean and free from debris. 2. Apply appropriate lubricant if necessary, especially for high-torque applications. 3. Engage the cap screw and tighten to the specified torque using a calibrated wrench or socket, ensuring the head is seated flush against the surface.

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)
M12Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M12Varies 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 the wrong size wrench, leading to fastener head damage.Always use a correctly sized socket or wrench that fits snugly onto the hex head to prevent stripping.
Over-tightening, causing thread stripping or material fatigue.Adhere to the recommended torque specifications for the specific application and mating materials to avoid overstressing the fastener.

Common Applications

  • Marine and offshore equipment
  • Chemical processing plants
  • Food and beverage manufacturing
  • Medical equipment
  • Wastewater treatment facilities

⚠️ Engineering Warnings

  • Ensure compatibility with the surrounding environment and mating materials to prevent galvanic corrosion.
  • Always wear appropriate personal protective equipment (PPE) during installation and handling.

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 and offshore equipment, Chemical processing plants, Food and beverage manufacturing, Medical equipment, Wastewater treatment facilities.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 61mmAF30mm1/2"-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.