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M8x27mm 304 Stainless Steel Hex Head Cap Screws (Pack of X)

Expert Overview

Engineered for robust assembly, these M8x27mm Hex Head Cap Screws are crafted from premium 304 stainless steel. They offer superior corrosion resistance and torque capability for critical applications.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
SizeM8
Length27mm
Head Width19mm

Detailed Engineering Specifications

Designed for demanding industrial environments, these M8x27mm Hex Head Cap Screws provide exceptional strength and durability. Constructed from high-grade 304 stainless steel, they exhibit excellent resistance to corrosion and oxidation, making them ideal for use in humid, chemical, or outdoor settings. The precise M8 thread ensures secure engagement with compatible nuts and tapped holes, while the 27mm length offers a substantial grip for various assembly thicknesses. The 19mm hex head width is optimized for standard wrench sizes, facilitating efficient installation and removal with controlled torque application, ensuring structural integrity in machinery, structural components, and equipment manufacturing.

🧊 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 wrench size (19mm) for the hex head. 2. Thread the cap screw into the pre-tapped hole or through the components to be joined. 3. Tighten the screw to the desired torque specification using a calibrated torque wrench, ensuring a secure and stable connection.

Equivalent Standards (Cross-Reference)

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

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)
M8Check CalculatorReduce by 25%

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
M8Varies 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 19mm wrench or socket that fits snugly onto the hex head to prevent damage.
Over-tightening or under-tightening, compromising joint integrity.Utilize a calibrated torque wrench and refer to engineering specifications for the correct torque values.
Using non-stainless steel fasteners in corrosive environments.Ensure 304 stainless steel fasteners are used in all applications exposed to moisture, chemicals, or the elements to prevent premature corrosion and failure.

Common Applications

  • Machinery assembly and maintenance
  • Structural steel connections
  • Outdoor equipment and infrastructure

⚠️ Engineering Warnings

  • Ensure correct thread pitch and diameter compatibility with mating components.
  • Avoid exposure to aggressive chemicals or high-salinity environments which may impact even 304 stainless steel over extended periods.

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: Machinery assembly and maintenance, Structural steel connections, Outdoor equipment and infrastructure.

Technical Schematic

HEX BOLT DIAGRAMSAE J429 / ASME B18.2.1HEXHEADLENGTH = 27mmAF19mm1/2"-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.