Top Lock Nut Grades

Same as grade 5. Strength is similar to grade 5. This custom style locknut incorporates two locking zones at the top of the nut.

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Top lock nut grades.

Top lock nuts grade c designed to maintain clamp load in temperatures up to 450 f the top of these nuts are crimped to create a locking zone. Use with grade 2h and grade c nuts. Use with astm a325 structural bolts. They meet ifi standards 100 101 106 107 and 108 and ansi standards b18 16 1m b18 16 2m and b18 16 3m and can be used with higher carbon and alloy steel bolts and studs.

Grade b7 threaded stud rod. Add to order add to list add to list view in catalog a11 approved supplier. Strength exceeds grade 5. Prevailing torque sae lock nut grade 5 steel 5 16 24 zinc plated 100 pk 59209 pkg qty 100.

A perforated block of steel possessing an internal or female thread intended for use on an external or male thread such as a bolt it also possesses a slight disfigured top which keeps pressure on the inserted bolt to give greater resistance to loosening. Grade c top lock nuts. Use with heat treated medium strength steel fasteners like astm a325 structural bolts. It is also know as a tech type locknut.

Available in coarse and fine threads. Prevailing torque sae lock nut grade 5 steel 3 8 24 zinc plated 100 pk. Strength is similar to grade 8. Requires the mating part to protrude a minimum of two threads to fully engage the locking element.

It is designed to ovalize and top lock by wrapping the locking zones from the top to the sides.