S-94361A589 M4 Shoulder Screws

Shoulder Screws

0538FA00189 Shoulder Screws
0538FA00189 Shoulder Screws

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

Part No.
Part No. 0538FA00189
Equivalent to mcmaster :
94361A589

Basic Information

System of Measurement Metric

Head Parameters

Head Type Socket
Head Diameter 9 mm
Head Height 4 mm
Head Texture Knurled
Socket Head Profile Standard

Dimensions

Shoulder Diameter 5 mm
Shoulder Diameter Tolerance -0.072 to -0.01 mm
Shoulder Fit Standard
Shoulder Length 4 mm
Shoulder Length Tolerance 0 to 0.25 mm

Thread Parameters

Thread Type Metric
Thread Size M4
Thread Pitch 0.7 mm
Thread Spacing Coarse
Thread Length 4 mm
Thread Direction Right Hand
Thread Fit Class 6g

Tip & Drive Parameters

Drive Style Hex
Drive Size 2.5 mm

Material & Strength

Material Alloy Steel
Finish Black Oxide
Hardness Rockwell C32
Tensile Strength 140000 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

  • Exceptional strength and durability with alloy steel construction and Rockwell C32 hardness, ideal for high-stress industrial environments
  • Superior corrosion resistance thanks to the black oxide finish, extending service life in harsh conditions
  • Precise alignment and secure fit with a 5mm shoulder diameter and tight tolerance of -0.072 to -0.01 mm, reducing assembly errors
  • Easy installation and removal using a standard 2.5 mm hex drive and knurled head for improved grip and torque application
  • Reliable thread performance with Class 6g fit and M4 x 0.7mm coarse thread, ensuring consistent fastening in dynamic applications
  • High tensile strength of 140,000 psi for dependable load-bearing capacity in mechanical assemblies
  • Compliance with environmental standards including RoHS 3 and REACH, supporting sustainable and safe manufacturing practices

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion in precision assemblies. Made from alloy steel with a black oxide finish, it provides enhanced wear resistance and durability in applications like machinery, automotive components, and electronic enclosures. The Class 6g thread fit and coarse M4 x 0.7mm thread ensure quick, secure fastening, while the knurled head and hex drive simplify maintenance. Ideal for industrial shoulder screw uses requiring high tensile strength and dimensional accuracy, this component reduces downtime and improves assembly reliability in demanding environments.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a shoulder diameter tolerance of -0.072 to -0.01 mm and length tolerance of 0 to 0.25 mm, adhering to metric thread standards with Class 6g fit. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and quality in industrial fastening solutions.

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