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JACK-NUTS ® are an economical Threaded Insert designed for use in thin, soft or brittle materials. During installation the body collapses on the back side to form legs which grip the inside of the mounting surface.

  • Fastens in blind holes
  • Won’t distort soft plastics
  • Not hole diameter sensitive
  • Can be installed in uneven materials
  • One-step installation with manual or pnuematic tools

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THREAD
SIZE
PART
NUMBER
POP® BODY
DIAMETER
WORK HOLE
DIAMETER
GRIP
RANGE
LENGTH
OVER ALL
HEAD
DIAMETER
HEAD
HEIGHT
APPROXIMATE STRENGTHS (See Note)

TEST
PLATE
HOLE DIA.

TEST
PLATE
THICKNESS

ULTIMATE
TORQUE
(in.-lbs.)

ULTIMATE
TENSILE
(lbs.)

A H G L B C

6-32

RJN-06-187
RJN-06-375
4SJN
4LJN
.318 .318/.330 .015-.187
.188-.375
.653
.841
.468 .073 .328 .187
.375
18
18
433
386

10-24

RJN-10-187
RJN-10-375
6SJN
6LJN
.382 .382/.400 .015-.187
.188-.375
.716
.888
.531 .073 .390 .187
.375
31
31
640
554

1/4-20

RJN-25-187
RJN-25-375
RJN-25-500
8SJN
8LJN
8XLJN
.438 .438/.450 .015-.187
.188-.375
.376-.500
.731
.919
1.094
.625 .073 .438 .187
.375
.500
41
41
41
820
806
855
Standard material: STEEL ZINC FINISH (BRASS is available as a special order and may be subject to a minimum order quantity)
NOTE: Values for tightening torques and ultimate tensile strengths are a guide only and may vary greatly upon the application.

Jack-Nut® Installation Tools

C70JNT11001

JNT 1100 FRICTION WRENCH

For use when installing a limited quantity of Jack-Nuts®.
Place the wrench between screw and head of insert,
hold wrench and run in screw to set Jack-Nut®.

C70-JNT2200_1

JNT 2200 LIGHT DUTY HAND TOOL

An economical tool for low volume installation in any material. Thread
Jack-Nut® on to mandrel, insert into hole, and squeeze handles to set. Tool
comes with one mandrel. Additional mandrels available to set all sizes.

C70-JNT2400_1

JNT 2400 HEAVY DUTY HAND TOOL

This rugged tool comes with all mandrels to set 6-32, 10-24,
and 1/4-20 Jack-Nuts®.

C70-JNT7530_7529_1

JNT 7529 & JNT 7530 SPIN-SPIN AIR TOOL

For high volume setting of Jack-Nuts®. These torque adjustable tools set the insert by rotation, automatically compensating for material thickness variations. Reverses for removal. Tool comes set-up for one size. JNT 7529: 750 rpm., 50 in.-lbs. torque. JNT 7530: 2300 rpm. , 15 in.-lbs. torque.