S-94128A110 M4 DIN 927 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Strength: Crafted from high-strength alloy steel with Rockwell B75 hardness for reliable performance in demanding industrial environments.
• Precise Shoulder Alignment: Features a 5.5mm shoulder diameter with a tight tolerance of -0.03mm to 0mm, ensuring accurate component positioning and reduced assembly play.
• Optimized Thread Engagement: M4x0.7mm coarse right-hand thread with Class 6g fit provides quick assembly and secure fastening in various materials.
• Space-Saving Headless Design: Headless construction with a slotted drive allows for flush mounting in compact assemblies, maximizing usable space.
• Consistent Shoulder Length: 10mm shoulder length with controlled tolerance ensures repeatable pivot points and bearing surfaces in mechanical linkages.
• Compliance with Rigorous Standards: Manufactured to DIN 927 specifications, guaranteeing dimensional consistency and interchangeability.
• Environmental & Safety Compliance: Meets RoHS 3 and REACH regulations, making it suitable for use in regulated industries and eco-conscious applications.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and wear issues in industrial assemblies. The alloy steel construction and Rockwell B75 hardness provide excellent resistance to shear forces and fatigue, making it ideal for pivots, axles, and guides in machinery. The precise shoulder fit with minimal diameter and length tolerances eliminates slop in rotating components, reducing vibration and extending equipment life. Its headless, slotted design allows for easy installation in confined spaces, while the M4 coarse metric thread ensures rapid assembly in plastics and soft metals. Commonly used in automation systems, printing equipment, and precision instruments, this screw delivers reliable performance where exact positioning is paramount.

Specification Summary & Compliance

This M4 shoulder screw features a Class 6g thread fit per ISO metric standards, with a shoulder diameter tolerance of -0.03mm to 0mm and shoulder length tolerance of -0.58mm to 0mm for high precision. It is manufactured in compliance with DIN 927 specifications, ensuring dimensional accuracy and mechanical properties. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.