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.

Steel Ball Plungers (Stainless Ball)
Product Information

Steel Ball Plungers (Stainless Ball)

Steel bodies are 12L14 steel.

Bodies are color coded.

Plain is 303 stainless steel.

Silver is zinc plated steel - light pressures.

Black is black oxide steel - medium pressures.

Gold is gold chromate finish - heavy pressures.

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

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

#6-40 and smaller have no slot in ball end


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Steel Ball Plungers (Stainless Ball)
With Lock.
Ele.Part #
W/O Lock.
Ele.Part #
**Color
Code
End Press. - Lbs.
Start
End Press. - Lbs.
Full
A B C Ball Dia.
D
Net Lbs.
Per 100
*10001B 10001BP Plain 0.12 0.5 # 4-48 3/16 .020 .062 1/4
*10002B 10002BP Plain 0.25 0.75 # 5-40 1/4 .020 .062 1/4
*10003B 10003BP Plain 0.5 1.0 # 6-40 5/16 .023 .078 1/4
*10004B 10004BP Plain 0.5 1.25 # 8-36 11/32 .025 .093 1/4
*10100B 10100BP Plain 0.5 1.25 # 8-32 11/32 .025 .093 1/4
10005 10005P Silver 0.5 1.5 # 10-32 33/64 .025 .093 1/4
10006 10006P Black 1.5 3.0 # 10-32 33/64 .025 .093 1/4
10007 10007P Gold 2.0 5.0 # 10-32 33/64 .025 .093 1/4
10008 10008P Silver 2.0 4.0 1/4-20 17/32 .035 .125 1/2
10009 10009P Black 3.0 7.0 1/4-20 17/32 .035 .125 1/2
10010 10010P Gold 4.0 12.0 1/4-20 17/32 .035 .125 1/2
10011 10011P Silver 2.0 4.5 5/16-18 37/64 .040 .156 1
10012 10012P Black 4.0 9.0 5/16-18 37/64 .040 .156 1
10013 10013P Gold 6.0 17.0 5/16-18 37/64 .040 .156 1
10014 10014P Silver 2.5 5.0 3/8-16 5/8 .048 .187 1-1/2
10015 10015P Black 5.0 10.0 3/8-16 5/8 .048 .187 1-1/2
10016 10016P Gold 6.0 21.0 3/8-16 5/8 .048 .187 1-1/2
10017 10017P Silver 3.0 6.0 1/2-13 3/4 .072 .281 3
10018 10018P Black 6.0 12.0 1/2-13 3/4 .072 .281 3
10019 10019P Gold 6.0 30.0 1/2-13 3/4 .072 .281 3
10020 10020P Silver 4.5 9.0 5/8-11 63/64 .096 .375 5-1/2
10021 10021P Black 9.0 18.0 5/8-11 63/64 .096 .375 5-1/2
10022 10022P Gold 7.0 50.0 5/8-11 63/64 .096 .375 5-1/2

** Silver - Light Pressures, Black - Medium Pressures, Gold - Heavy Pressures

All Parts conform to TCMAI Standards