S-90323A478 M6 Shoulder Screws

Shoulder Screws

0581FA00079 Shoulder Screws
0581FA00079 Shoulder Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0581FA00079
Equivalent to mcmaster :
90323A478

Basic Information

System of Measurement Metric

Head Parameters

Head Type Socket
Head Diameter 13 mm
Head Height 3.5 mm
Head Texture Smooth
Socket Head Profile Low

Dimensions

Shoulder Diameter 8 mm
Shoulder Diameter Tolerance -0.025 to 0 mm
Shoulder Fit Precise
Shoulder Length 14 mm
Shoulder Length Tolerance 0 to 0.05 mm

Thread Parameters

Thread Type Metric
Thread Size M6
Thread Pitch 1 mm
Thread Spacing Coarse
Thread Length 11 mm
Thread Direction Right Hand
Thread Fit Class 6g

Tip & Drive Parameters

Drive Style Hex
Drive Size 4 mm

Material & Strength

Material 18-8 Stainless Steel
Finish Passivated
Hardness Rockwell B95
Tensile Strength 80000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh industrial environments
  • Exceptional strength and durability offering 80,000 psi tensile strength and Rockwell B95 hardness for high-stress applications
  • Precise alignment and reduced wear through the precisely fitted shoulder with tight diameter and length tolerances
  • Easy installation in confined spaces with the low-profile socket head and 4mm hex drive for efficient assembly
  • Reliable thread performance with Class 6g thread fit and coarse pitch for secure fastening and vibration resistance
  • Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries
  • Optimized for metric system applications with M6x1mm right-hand threads for seamless integration into global designs

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and space constraints in precision machinery, automation systems, and electronic enclosures. The 14mm shoulder length with minimal tolerance provides exact positioning for rotating components, reducing bearing wear and maintenance downtime. Constructed from 18-8 stainless steel with a passivated finish, it resists oxidation and chemical exposure in demanding environments like manufacturing and marine applications. The low-profile socket head design allows installation in tight spaces where standard fasteners fail, while the Class 6g thread fit ensures consistent engagement without cross-threading. Ideal for assembly jigs, pivoting mechanisms, and PCB mounts, this screw delivers reliable performance where precision and durability are non-negotiable.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with M6x1mm coarse threads and Class 6g thread fit for precise tolerance. The shoulder features a diameter of 8mm with -0.025 to 0mm tolerance and length of 14mm with 0 to 0.05mm tolerance, ensuring exact fitment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and industrial suitability.

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