Product Spotlight:

Our line of Press-Thru (trade marked) spring and ball plungers have the same dimensions, spring pressures, and materials as our standard press fit product line.
Press-Thru™ Spring and Ball Plungers

Our line of Press-Thru™ spring and ball plungers have the same dimensions, spring pressures, and materials as our standard press fit product line. They are designed without the flange on the nose end to allow for the insertion of the plunger from top or bottom, front or back. Simply press the body through the hole until the plunger is flush with the surface. The body is slightly over sized to fit firmly into the hole. Please contact us for a free sample, or if you need any technical information.

Hex Drive "Short" Stainless Steel Spring Plungers with Light Spring Pressures
Product Information

Hex Drive "Short" Stainless Steel Spring Plungers with Heavy Spring Pressures

Delrin® nose prevent marring of aluminum, brass or other soft materials.

Hex Drive Plungers use a positive drive for insertion and removal.

Plungers may be ordered with or without the locking element. Plungers without locking element are the same price, but are considered "specials" and cannot be returned. We recommend using without the locking element for applications in aluminum.

The Nylon locking element holds the plunger body securely in place witout the need for lock nuts or other devices. We recommend a 90° countersink 1/32" larger than the major diameter of the mating thread to prevent damaging the element.

End pressures are given in pounds. Full pressures are the force pounds needed to move the nose to the distance show in "C" column.

To prevent possible spring damage, use of a Northwestern Wrench is recommended when installing from plunger end.


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Hex Drive "Short" Stainless Steel Spring Plungers
Part
Number
Without
Locking Ele.
End Press. - Lbs.
Start
End Press. - Lbs.
Full
A B C DHex Dia.
E
Lbs.
Per 100
Stainless Steel Nose - Light Pressure
33520H 33520HP 0.5 1.5 8-32 1/2 .052 .070 5/64 1/2
33521H 33521HP 0.5 1.5 8-36 1/2 .052 .070 5/64 1/2
33522H 33522HP 0.75 2.5 10-32 9/16 .065 .093 3/32 1/2
33523H 33523HP 1.0 3.5 1/4-20 5/8 .078 .119 1/8 1/2
33524H 33524HP 1.5 4.0 5/16-18 23/32 .084 .135 5/32 1
33525H 33525HP 1.5 5.0 3/8-16 29/32 .110 .186 3/16 2
33526H 33526HP 1.75 5.5 1/2-13 1-3/64 .151 .248 1/4 4
33527H 33527HP 2.0 8.5 5/8-11 1-3/8 .215 .310 5/16 8
White Delrin® Nose - Light Pressure
33560H 33560HP 0.5 1.5 8-32 1/2 .052 .070 5/64 1/2
33561H 33561HP 0.5 1.5 8-32 1/2 .052 .070 5/64 1/2
33562H 33562HP 0.75 2.5 10-32 9/16 .065 .093 3/32 1/2
33563H 33563HP 1.0 3.5 1/4-20 5/8 .078 .119 1/8 1/2
33564H 33564HP 1.5 4.0 5/16-18 23/32 .084 .135 5/32 1
33565H 33565HP 1.5 5.0 3/8-16 29/32 .110 .186 3/16 1-1/2
33566H 33566HP 1.75 5.5 1/2-13 1-3/64 .151 .248 1/4 3-1/2
33567H 33567HP 2.0 8.5 5/8-11 1-3/8 .215 .310 5/16 8

All Parts conform to TCMAI Standards