S-91390A440 M4 x 40 mm DIN 916, ISO 4029 Set Screws
Set Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional holding strength with a cup point design that bites into materials for secure, vibration-resistant fastening in demanding applications.
- Superior durability and wear resistance thanks to the alloy steel construction and Rockwell C45 hardness, ensuring a long service life under high stress.
- Precise and reliable fit with Class 5g6g thread tolerance, providing consistent performance and reducing the risk of assembly issues.
- Easy installation and removal using a standard 2 mm hex drive, saving time and labor in maintenance and assembly operations.
- Optimized for coarse threading with a 0.7 mm pitch, enabling quick assembly and strong holding power in various materials.
- Compliance with international standards including DIN 916 and ISO 4029, ensuring interchangeability and quality assurance in global supply chains.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting strict regulatory requirements for industrial use.
Professional Applications & Engineering Value
This M4 set screw is engineered to address common industrial challenges such as component slippage and loosening under vibration. The alloy steel material, combined with a Rockwell C45 hardness, provides excellent resistance to deformation and wear, making it ideal for high-stress environments like machinery, automotive assemblies, and precision equipment. The cup point design ensures a firm grip by creating a depression in the mating surface, which enhances security in right-hand coarse thread applications. Its headless and hex drive features allow for flush mounting and easy access in confined spaces, streamlining installation while maintaining metric compatibility for global engineering projects.
Specification Summary & Compliance
This set screw adheres to precise Class 5g6g thread fit tolerances as per ISO 4029 and DIN 916 standards, ensuring dimensional accuracy for M4 x 0.7 mm coarse thread applications. It meets regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting sustainable and safe industrial use.
