S-91290A145 M4 x 45 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws
Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength with Class 12.9 rating (170,000 PSI) for reliable performance in high-stress applications
- Superior corrosion resistance due to black-oxide coating on alloy steel, extending service life in harsh environments
- Optimized load distribution with partially threaded design and 20mm minimum thread length for enhanced holding power
- Precise installation and removal using standard 3mm hex drive, reducing tool slip and assembly time
- High hardness (Rockwell C37) ensures excellent wear resistance and durability under repetitive loads
- Wide industrial compatibility with coarse M4 x 0.7mm metric threads conforming to Class 5g6g fit for consistent engagement
- Regulatory compliance meeting DIN 912/ISO 4762, RoHS 3, and REACH for safe, global use
Professional Applications & Engineering Value
This M4 socket head cap screw is engineered to address critical challenges in machinery, automotive, and precision equipment assembly. The black-oxide alloy steel construction provides a durable barrier against rust and chemical exposure, ideal for environments with moisture or contaminants. Its Class 12.9 strength rating and Rockwell C37 hardness prevent stripping and deformation under high torque, ensuring long-term joint integrity. The partially threaded profile with coarse metric threads allows for rapid installation and secure fastening in metals and composites, while the standard hex drive minimizes cam-out risks. By adhering to DIN 912/ISO 4762 standards, it guarantees dimensional accuracy and interchangeability, reducing downtime in production lines.
Specification Summary & Compliance
This screw features M4 x 0.7mm coarse metric threads with a Class 5g6g thread fit for precise tolerance, a minimum thread length of 20mm, and overall length of 45mm. It conforms to DIN 912 (ISO 4762) manufacturing specifications, ensuring consistent head diameter (7mm), height (4mm), and drive size (3mm hex). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible sourcing and usage in industrial applications.
