729101
Hex Drive Nut
SAF-Holland

This hex-drive fastener is designed to deliver reliable clamping force and torque transfer in a variety of SAF-HOLLAND assemblies, including housings, linkage points, and drive interface components. Constructed for resilience under high loading and vibration, it provides stable retention and predictable performance across service intervals. The hex drive configuration supports efficient tool access in confined spaces, enabling technicians to complete installations or adjustments with common socket adaptations. VMRS 077-003-005 classifies it within the standard hardware family used for securing mechanical interfaces, supporting consistent maintenance planning and cross-referencing with other part numbers. Category 42740 places the fastener in the broader hardware segment that underpins drive, steering, and support linkages across heavy trucks and trailers. In practice, the part offers dependable joint integrity, reduced risk of loosening under cyclic loads, and a straightforward replacement path in field service, contributing to safer operation and minimized downtime during repairs.