BS11 | Female Thread Ball Studs

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Dimensions

Thread Series Sheet 1
Thickness
Length
Code
L
±.010
S
±.005
D
Min.
6-32
UNC-2A
BS11 .025-.051 421 .421 .328 .185
.052-.078 447 .447 .354 .211
.079-.105 473 .473 .380 .237
.106-.132 499 .499 .406 .263
.133-.159 525 .525 .432 .289
.160-.187 551 .551 .458 .315
.177-.203 570 .570 .477 .334
.230-.256 625 .625 .532 .389

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.

Material & Finish

Material CodeMaterial DescriptionFinish CodeFinish Description
STLLow Carbon Steel (STL)Z Zinc Clear
SSStainless SteelP Passivated

Contact a PENCOM Account Representative for other material & finish options.