S-90265A680 M6 ISO 7379 Shoulder Screws

Shoulder Screws

0543FA00279 Shoulder Screws
0543FA00279 Shoulder Screws

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

Part No.
Part No. 0543FA00279
Equivalent to mcmaster :
90265A680

Basic Information

System of Measurement Metric

Head Parameters

Head Type Socket
Head Diameter 13 mm
Head Height 5.5 mm
Head Texture Knurled
Socket Head Profile Standard

Dimensions

Shoulder Diameter 8 mm
Shoulder Diameter Tolerance -0.072 to -0.01 mm
Shoulder Fit Standard
Shoulder Length 8 mm
Shoulder Length Tolerance 0 to 0.25 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 5g6g

Tip & Drive Parameters

Drive Style Hex
Drive Size 4 mm

Material & Strength

Material 18-8 Stainless Steel
Finish Black Oxide
Hardness Rockwell B83
Tensile Strength 70000 psi
Minimum Shear Strength 45000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ISO 7379
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
  • High tensile strength (70,000 psi) and hardness (Rockwell B83) for reliable performance under heavy loads.
  • Precise shoulder diameter and length tolerances ensure accurate alignment and smooth rotation in assemblies.
  • Black oxide finish provides added wear resistance and a non-reflective, professional appearance.
  • Class 5g6g thread fit guarantees consistent, secure fastening with minimal play in metric applications.
  • Knurled head and hex socket drive offer superior grip and torque application, reducing installation time.
  • Compliance with ISO 7379, RoHS 3, and REACH ensures global regulatory acceptance and environmental safety.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address common assembly challenges in precision machinery, automation systems, and rotating equipment. The 18-8 stainless steel material provides excellent resistance to rust and chemical exposure, while the black oxide finish enhances durability in high-friction applications. The precisely machined shoulder with tight diameter and length tolerances acts as a pivot or spacer, eliminating misalignment and reducing wear on components. With a coarse thread pitch and Class 5g6g fit, it ensures quick installation and reliable holding power in dynamic environments, making it ideal for industrial applications requiring repeatable accuracy and long-term performance.

Specification Summary & Compliance

This shoulder screw features an M6 x 1 mm metric coarse thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter is 8 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 8 mm with a tolerance of 0 to 0.25 mm. It is manufactured in accordance with ISO 7379 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets international environmental and safety standards.

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