Qonnect M4 Mandrel (Part No. 04ASN12R121) is engineered for reliable performance in professional fastening, access hardware and assembly applications. Its listed specification includes Pull Link ASN12R Tool. It is intended to support accurate, repeatable installation and dependable operation in professional production and maintenance environments. As part of the Qonnect product range, it reflects the brand's established focus on consistent quality and application-led engineering. Its application-focused design helps engineers and technicians maintain consistent assembly quality and minimise avoidable downtime.