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M17x56mm 316 Stainless Steel Hex Cap Screw

Expert Overview

This M17x56mm Hex Head Cap Screw, forged from superior 316 stainless steel, offers exceptional corrosion resistance and robust mechanical strength for demanding applications.

StandardASME B18
Material316 Stainless Steel
FinishPlain
GradeN/A
SizeM17
Length56mm
Head Width23mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this M17x56mm hex head cap screw is constructed from premium 316 stainless steel, renowned for its superior resistance to pitting and crevice corrosion, even in aggressive environments. The M17 nominal diameter, coupled with a 56mm length, ensures ample engagement for secure fastening. The 23mm head width provides a substantial bearing surface, distributing load effectively and preventing damage to mating materials. This material grade is particularly suited for marine, chemical processing, and food & beverage industries where exposure to saltwater, acids, and other corrosive agents is common. Meeting stringent industry standards, these fasteners provide reliable and long-lasting performance.

🧊 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 mating hole size and thread. 2. Apply a lubricant if necessary to facilitate tightening and prevent galling, especially in stainless steel. 3. Use a calibrated torque wrench to tighten the cap screw to the specified torque value, ensuring even pressure distribution.

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)
M17Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M17Varies by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening the screw, leading to thread stripping or material deformation.Always adhere to the manufacturer's recommended torque specifications for the specific application and mating materials.
Using the wrong size wrench, which can damage the hex head and lead to improper torque application.Ensure the wrench size precisely matches the 23mm head width for optimal grip and torque transfer.

Common Applications

  • Marine hardware and deck fittings
  • Chemical processing equipment
  • Food and beverage manufacturing machinery

⚠️ Engineering Warnings

  • Avoid using in environments with significantly higher tensile or shear stress requirements than the fastener's rating.
  • Ensure proper thread engagement to prevent premature failure; minimum engagement should be at least 1.5 times the screw's nominal diameter.

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 deck fittings, Chemical processing equipment, Food and beverage manufacturing machinery.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 56mmAF23mm1/2"-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.