S-91760A158 M4 x 20 mm DIN 912, ISO 4762 Alloy Steel Thread-Locking Socket Head Screws
Alloy Steel Thread-Locking 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
- Vibration-resistant locking with nylon patch thread locker maintains secure fastening in high-stress environments
- Exceptional tensile strength of 170,000 psi ensures reliable performance under heavy mechanical loads
- Corrosion-resistant black-oxide coating on alloy steel provides enhanced durability in demanding industrial conditions
- Precision Class 5g6g thread fit guarantees consistent engagement and reliable assembly in metric applications
- Wide temperature tolerance from -70° to 250°F ensures performance stability across diverse operating environments
- Standard hex socket drive enables efficient installation with common 3mm hex tools while preventing cam-out
- Full thread coverage along the 20mm length provides maximum grip and load distribution
Professional Applications & Engineering Value
These M4 socket head cap screws deliver critical vibration resistance and mechanical reliability in demanding assembly applications. The black-oxide alloy steel construction combined with Rockwell C37 hardness provides exceptional wear resistance and durability in machinery, automotive, and industrial equipment where metric coarse threads are specified. The integrated nylon patch thread locker effectively prevents loosening from vibration and thermal cycling, making these fully threaded fasteners ideal for precision assemblies requiring maintained clamp force. Engineered to DIN 912/ISO 4762 standards, these screws ensure dimensional consistency and reliable performance in critical joints where failure is not an option.
Specification Summary & Compliance
Manufactured to precise Class 5g6g thread tolerances with M4 x 0.7mm coarse metric threading and right-hand orientation. These socket head cap screws comply with DIN 912/ISO 4762 specifications and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. The 20mm length features full threading and is designed for use with standard 3mm hex drive tools.
