Steel Ball Plungers - Fine Thread (UNF)

Jergens Ball Plungers are made under extremely accurate machine controls and rigid inspection procedures. Accurate spring alignment is maintained by using a stainless rivet with a long shank on larger sizes of our Ball Plungers. This precisely positions the spring for more accurate ball travel and provides positive control of spring pressure. By minimizing the lining pin head thickness, we are able to use the longest possible springs.

Features & Benefits:
  • Positive control of spring pressure
  • Less fatigue and longer spring life by minimizing lining pin head thickness
  • Uniform ball projection keeps variances within ±0.005".
  • Conforms to TCMA dimensional standards
  • Patch-style locking element
  • Special materials and sizes available upon requests

Material Specifications:
  • Body Material: Low Carbon Steel
  • Ball Material: 440 Stainless Steel
  • Spring Material: 17-7 PH Stainless Steel
  • Body Finish: Black Oxide
  • Thread: Inch: 2A-UNF

Note(s):
For easy insertion of Ball Plungers with Locking Elements, the tapped hole should be countersunk at least 0.030"-0.045" (0.76mm-1.14mm) larger than the major diameter of the plunger.

Steel Ball Plungers - Fine Thread (UNF)

Select a part number for CAD drawings, price and stock availability.

Part Number CAD Unit Thread Size A Initial Force (lbs) Final Force (lbs) B (In) C (In) D (In) Locking Element
10703 Inch 1/4-28 2.0 4.0 17/32 0.035 0.125 Yes
10704 Inch 1/4-28 4.0 12.0 17/32 0.035 0.125 Yes
10705 Inch 5/16-24 2.0 4.5 37/64 0.040 0.156 Yes
10706 Inch 5/16-24 6.0 17.0 37/64 0.040 0.156 Yes
10707 Inch 3/8-24 2.5 5.0 5/8 0.048 0.187 Yes
10708 Inch 3/8-24 6.0 21.0 5/8 0.048 0.187 Yes
10709 Inch 1/2-20 3.0 6.0 3/4 0.072 0.281 Yes
10710 Inch 1/2-20 6.0 30.0 3/4 0.072 0.281 Yes
10712 Inch 1/4-28 3.0 7.0 17/32 0.035 0.125 Yes
10713 Inch 5/16-24 4.0 9.0 37/64 0.040 0.156 Yes
10714 Inch 3/8-24 5.0 10.0 5/8 0.048 0.187 Yes
10715 Inch 1/2-20 6.0 12.0 3/4 0.072 0.281 Yes
10723 Inch 1/4-28 2.0 4.0 17/32 0.035 0.125 No
10724 Inch 1/4-28 4.0 12.0 17/32 0.035 0.125 No
10725 Inch 5/16-24 2.0 4.5 37/64 0.040 0.156 No
10726 Inch 5/16-24 6.0 17.0 37/64 0.040 0.156 No
10727 Inch 3/8-24 2.5 5.0 5/8 0.048 0.187 No
10728 Inch 3/8-24 6.0 21.0 5/8 0.048 0.187 No
10729 Inch 1/2-20 3.0 6.0 3/4 0.072 0.281 No
10730 Inch 1/2-20 6.0 30.0 3/4 0.072 0.281 No
10732 Inch 1/4-28 3.0 7.0 17/32 0.035 0.125 No
10733 Inch 5/16-24 4.0 9.0 37/64 0.040 0.156 No
10734 Inch 3/8-24 5.0 10.0 5/8 0.048 0.187 No
10735 Inch 1/2-20 6.0 12.0 3/4 0.072 0.281 No
10801 Inch 10-32 0.50 1.50 33/64 0.025 0.093 No
10802 Inch 10-32 1.50 3.00 33/64 0.025 0.093 No
10803 Inch 10-32 2.00 5.00 33/64 0.025 0.093 No
10826 Inch 4-48 0.12 0.50 3/16 0.020 0.062 No
10828 Inch 6-40 0.50 1.00 5/16 0.023 0.078 No
10829 Inch 8-36 0.50 1.25 11/32 0.025 0.093 No
10901 Inch 10-32 0.50 1.50 33/64 0.025 0.093 Yes
10902 Inch 10-32 1.50 3.00 33/64 0.025 0.093 Yes
10903 Inch 10-32 2.00 5.00 33/64 0.025 0.093 Yes
10926 Inch 4-48 0.12 0.50 3/16 0.020 0.062 Yes
10928 Inch 6-40 0.50 1.00 5/16 0.023 0.078 Yes
10929 Inch 8-36 0.50 1.25 11/32 0.025 0.093 Yes

Documents and Videos

  • Operating Manual
  • Operating Manual - 81600 ONLY
  • Jergens Production Vise System
  • Jergens Production Vises Features and Benefits
  • Vertical Machine Solutions
  • Horizontal Machine Solutions
  • Hydraulic Production Vises
  • Production Vises

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