S-91290A277 M27 x 100 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 12.9 strength rating and 170,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by the black-oxide coating on alloy steel, extending service life in demanding industrial environments
• Precise torque application enabled by the 19mm hex socket drive and standard socket head profile for secure installation and removal
• Optimized clamping force distribution through the partially threaded design with 66mm minimum thread length and M27x3mm coarse thread pitch
• Enhanced mechanical stability from the 40mm head diameter and 27mm head height, providing superior bearing surface contact
• Guaranteed dimensional accuracy with Class 5g6g thread fit ensuring consistent performance and interchangeability
• Industry-standard compliance meeting DIN 912/ISO 4762 specifications for reliable integration into existing systems

Professional Applications & Engineering Value

These M27 socket head cap screws deliver critical engineering solutions for heavy machinery, industrial equipment, and structural assemblies where vibration resistance and sustained clamping force are paramount. The black-oxide alloy steel construction combined with Class 12.9 strength rating (170,000 psi tensile strength, Rockwell C37 hardness) ensures exceptional fatigue resistance under dynamic loads. The partially threaded design with M27x3mm coarse thread provides optimal stress distribution while the 19mm hex drive allows for high-torque installation in confined spaces. These metric socket head screws are engineered to prevent loosening in high-vibration environments, making them ideal for automotive manufacturing, heavy equipment, and industrial machinery applications where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to precise Class 5g6g thread fit tolerances with M27x3mm coarse thread spacing and right-hand thread direction. Fully compliant with DIN 912/ISO 4762 standards for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The 100mm overall length with 66mm minimum thread length provides consistent performance in demanding applications.