S-97505A111 M4 DIN 923 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments.
• High tensile strength of 58,000 PSI ensures reliable performance under significant mechanical loads.
• Precision Class 6g thread fit guarantees consistent, secure fastening and easy assembly.
• Durable alloy steel construction with Rockwell B71 hardness provides excellent wear resistance and durability.
• Low-profile socket head design allows for compact installations and easy access in tight spaces.
• Standardized shoulder diameter and length with tight tolerances for precise alignment and bearing surfaces.
• Compliance with DIN 923, RoHS 3, and REACH ensures adherence to international quality and safety standards.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered from alloy steel with a zinc-plated finish to combat corrosion in demanding settings like machinery, automotive assemblies, and precision equipment. The coarse 0.7mm thread pitch and Class 6g thread fit facilitate quick, reliable fastening, reducing assembly time and minimizing the risk of cross-threading. Its 5.5mm shoulder diameter and precise length tolerances provide a stable pivot or spacer, crucial for aligning components and reducing wear in rotating parts. Ideal for applications requiring right-hand thread and low-profile socket head designs, it delivers consistent performance where space and durability are paramount.

Specification Summary & Compliance

This shoulder screw features a metric M4 x 0.7mm coarse thread with Class 6g tolerance for precise fit. Shoulder diameter is 5.5 mm with a tolerance of -0.03 mm to 0 mm, and shoulder length is 5 mm with a tolerance of 0.07 mm to 0.15 mm. It meets DIN 923 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability.