Ball Studs and Clips

BS11 – Female Thread Ball Studs

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Thread

ThreadSeriesSheet 1
Thickness
Length
Code
L
±.010
S
±.005
D
Min.
6-32
UNC-2A
BS11.025-.051421.421.328.185
.052-.078447.447.354.211
.079-.105473.473.380.237
.106-.132499.499.406.263
.133-.159525.525.432.289
.160-.187551.551.458.315
.177-.203570.570.477.334
.230-.256625.625.532.389

Material

Material CodeMaterial DescriptionFinish CodeFinish Description
STLCarbon SteelZZinc SC1 with Type III Clear Chromate per ASTM B 633
SS300-Series Stainless SteelPPassivated and/or Tested per ASTM A 967

Thread

ThreadSeriesSheet 1
Thickness
Length
Code
L
±.025
S
±.013
D
Min.
M3.5 x 0.6
6H
BS11M0.64-1.30106910.698.334.70
1.31-1.98113511.358.995.36
1.99-2.67120112.019.656.02
2.68-3.35126712.6710.316.68
3.36-4.04133413.3410.977.34
4.05-4.75140014.0011.638.00
4.50-5.16144814.4812.128.48
5.84-6.50158815.8813.519.88

Material

Material CodeMaterial DescriptionFinish CodeFinish Description
STLCarbon SteelZZinc SC1 with Type III Clear Chromate per ASTM B 633
SS300-Series Stainless SteelPPassivated and/or Tested per ASTM A 967

INSTALLATION 

  1. Punch or drill hole in sheet. Insert a male thread fastener through hole in the sheet and secure the ball stud. In some applications it may be desirable to install a washer between the head of the male threaded fastener and sheet.
  2. Tighten the assembly by torquing the male threaded fastener 7 to 10 in-lbs (6-32) or 0.8 to 1.1 N-m (M3.5). PENCOM recommends a minimum thread engagement of .138 in (6-32) or 3.5 mm (M3.5) between the male and female threads. Installation torques are for zinc–plated Grade 2 (inch) or Class 4.8 (metric) carbon steel screws and for reference only. PENCOM recommends testing in the application.
  3. Due to the inelastic nature and unpredictable friction coefficients of stainless steel, torque calculations for this material can be unreliable. One method of determining the installation torque uses 50% of the failure torque as developed through testing in the application and applying a ±20% tolerance.