S-94361A543 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with alloy steel construction providing 140,000 psi tensile strength and Rockwell C32 hardness for reliable performance in demanding applications.
• Precise alignment and smooth rotation thanks to the 8mm shoulder with controlled diameter tolerance (-0.072 to -0.01 mm), ensuring accurate component positioning.
• Corrosion-resistant black oxide finish enhances longevity and provides a professional appearance, ideal for industrial environments.
• Secure and easy installation with a knurled socket head and 5 mm hex drive, offering superior grip and reducing tool slippage during tightening.
• Consistent thread engagement through Class 5g6g thread fit and M8x1.25 coarse thread pitch, enabling quick assembly and high load-bearing capacity.
• Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe and sustainable use in global markets.
• Versatile right-hand metric threading ensures compatibility with standard components, simplifying procurement and replacement.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical challenges in precision assembly, such as misalignment and wear in machinery. The alloy steel core and black oxide finish provide robust resistance to corrosion and high stress, making it ideal for applications in automotive, robotics, and heavy equipment where high tensile strength and durability are paramount. The 8mm shoulder length and precise diameter tolerance allow for accurate bearing or bushing placement, reducing vibration and extending component life. With a knurled socket head and hex drive, it ensures secure fastening in tight spaces, enhancing efficiency in maintenance and production lines while adhering to metric thread standards for global interoperability.

Specification Summary & Compliance

This shoulder screw features Class 5g6g thread fit per metric standards, ensuring precise thread engagement and tolerance. Key dimensions include an 8mm shoulder length with a tolerance of 0 to 0.25 mm and a shoulder diameter of 10 mm with tight control for accurate fits. It complies with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations for industrial use.