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M12 x 45mm 316 Stainless Steel Hex Cap Screw

Expert Overview

This M12 x 45mm Hex Head Cap Screw, constructed from premium 316 stainless steel, offers superior corrosion resistance and robust tensile strength. Ideal for critical structural and mechanical applications.

StandardISO 9001
Material316 Stainless Steel
FinishPlain
GradeN/A
SizeM12
Length45mm
Head Width12mm

Detailed Engineering Specifications

Engineered for reliability and performance, this M12 x 45mm Hex Head Cap Screw features a nominal diameter of 12mm and a total length of 45mm. The hex head boasts a wrenching width of 12mm, ensuring secure torque application. Manufactured from 316 stainless steel, it provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in marine, chemical, and food processing environments. Its inherent strength and durability make it suitable for load-bearing joints and assemblies requiring long-term integrity and resistance to harsh conditions.

🧊 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 size and type of wrench (typically a 12mm hex socket or combination wrench). 2. Thread the cap screw into the pre-tapped hole or nut, ensuring smooth engagement without cross-threading. 3. Apply torque to the head of the cap screw to the specified tightening torque for the application, using a calibrated torque wrench if necessary.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 898-1 / ISO 4014
DIN EquivalentDIN 931 / DIN 933
Primary StandardISO 9001

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 head damage or insufficient torque.Always use a wrench that precisely matches the 12mm head width of the cap screw for optimal engagement and torque transfer.
Cross-threading the fastener, which can damage both the screw and the mating component.Carefully start threading the screw by hand to ensure proper alignment before applying any significant force.

Common Applications

  • Marine and offshore equipment
  • Chemical processing plants
  • Food and beverage industry machinery
  • Structural steel connections
  • Outdoor and corrosive environments

⚠️ Engineering Warnings

  • Ensure mating threads are clean and free from debris before installation to prevent damage.
  • Do not exceed the recommended torque specifications for the application, as this can lead to fastener failure or damage to mating components.

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 industry machinery, Structural steel connections, Outdoor and corrosive environments.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 45mmAF12mm1/2"-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.