S-92981A913 M6 ASTM A108 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Black oxide finish provides superior protection against rust and wear, extending service life in harsh industrial environments.
• High Tensile Strength for Demanding Applications: Alloy steel construction with 140,000 psi tensile strength ensures reliable performance under heavy loads and stress.
• Precision Shoulder Fit for Accurate Alignment: 100mm shoulder length with tight tolerance (±0.25mm) and 8mm diameter enables exact component positioning and reduces assembly errors.
• Secure Fastening with Consistent Thread Quality: Class 5g6g thread fit with M6x1 coarse pitch ensures easy installation and vibration-resistant connections.
• Easy Installation & Removal with Knurled Head: Socket head with 4mm hex drive and knurled texture offers improved grip and tool engagement, speeding up maintenance.
• Compliance with International Standards: Meets ASTM A108 specifications and is RoHS 3 and REACH compliant, ensuring safety and regulatory adherence for global use.
• Optimized for Right-Hand Thread Applications: Standard right-hand thread direction simplifies integration into common mechanical systems.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The alloy steel material, combined with a black oxide finish, resists corrosion and wear in demanding settings like machinery, automotive, and automation systems. The 100mm shoulder length with minimal tolerance variation ensures components remain securely positioned, reducing misalignment and wear on moving parts. With a Class 5g6g thread fit and coarse pitch, it facilitates quick installation while maintaining tight tolerances for high tensile strength applications. Ideal for use in jigs, pivots, and rotating assemblies, this screw enhances operational reliability and minimizes downtime.

Specification Summary & Compliance

This shoulder screw features a metric M6x1 thread with Class 5g6g fit and a shoulder diameter of 8mm (tolerance: -0.072 to -0.01 mm). The shoulder length is 100mm with a tolerance of 0 to 0.25 mm, ensuring precision alignment. It complies with ASTM A108 standards and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.