Features and Benefits
Self-clinching fasteners are pressed into holes in sheet metal by applying a steady squeezing force. This results in the cold-flow of sheet material, which is displaced by the knurl, into the undercut area on the shank of the fastener. Once fully embedded, the knurled area prevents torque-out during tightening of mating part.
*Spec. ASTM B633-85
Thread: Non Locking: Class 2B, MIL-S-7742;(6H ISO metric)
Self Locking: Class 3B, ANSI B1-1; (6H ISO metric)
Float: .015 in. (.4mm) minimum in all directions from center, 0.030 in. (.8mm) total
Use In: Materials with Rockwell Hardness of B-70 or less