EN 616 (inch sizes) Bolt spring plungers

Threaded body

Black-oxide steel, internal hexagon socket.

Standard executions

Black oxide hardened steel bolt, stainless steel spring.

• EN 616-S: normal end force.

• EN 616-SS: heavy end force (marked with two lines).

• EN 616-S/LE: normal end force, with locking patch.

• EN 616-SS/LE: heavy end force, with locking patch (marked with two lines).

Nylon locking patch for applications subject to vibrations or to eliminate the need for check nuts. Not recommended for applications in soft materials.

Countersink the mating thread at least .030 to .045 larger than the major thread diameter of the plunger to make its insertion easier.