TH 615.1 bolt spring plungerThreaded bodyBlack-oxide steel, screwdriver slotted head.Bolt and spring- Version B: hardened steel bolt, black-oxide steel spring with normal end-force.- Version BS: zinc-plated steel bolt, black-oxide steel, housing with two longitudinal marks.Special executions on request (For sufficient quantities)- Execution B-MVK, BS-MVK: thread locking by means of micro-encapsulated red patch . Working temperature: from -40� to +170�.- Execution B-PFB, BS-PFB: thread locking by means of polyamide blue coating. Working temperature: from -50� to +90�.
