Inch

BS12 Self-clinching Ball Studs

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Part Desc. LengthMaterialFinish
Sheet 1 Thickness Sheet 2 Thickness Length Code L ±.010 S ±.005
.025-.051 .040-.049 466 .466 .373
.050-.059 476 .476 .383
.052-.078 .040-.049 492 .492 .399
.050-.059 502 .502 .409
.079-.105 .040-.049 518 .518 .425
.050-.059 528 .528 .435
.106-.132 .040-.049 544 .544 .451
.050-.059 554 .554 .461
.133-.159 .040-.049 570 .570 .477
.050-.059 580 .580 .487
.160-.187 .040-.049 596 .596 .503
.050-.059 606 .606 .513
.177-.203 .040-.049 615 .615 .522
.050-.059 625 .625 .532
.230-.256 .040-.049 670 .670 .577
.050-.059 680 .680 .587
Material Code Material Description Finish Code Finish Description Empty
HRB 70 Max. HRB 80 Max. HRB 88 Max.
S4 400 Series Stainless Steel P Passivated
STL Low Carbon Steel Z Zinc Clear
SS Stainless Steel P Passivated
  1. Punch or drill hole in sheet a minimum distance of .37in (9.4mm) from the hole center to edge of sheet. Do not deburr edges.
  2. Insert the ball stud through hole in sheet and into the anvil as shown.
  3. Squeeze the sheet and ball stud head between parallel punch and anvil surfaces. Use only enough pressure to seat the ball stud head flush with the sheet. Punch and anvil should be made from hardened steel.
Ball Stud Material Code test Sheet Material
5052-H32 aluminum 1008 Carbon Steel HrB 60 304 Stainless Steel HrB 70
Installation lbs (kN) Push-out lbs (N) Installation lbs (kN) Push-out lbs (N) Installation lbs (kN) Push-out lbs (N)
STL 1700-2000 (7.6-8.9) 230 (1023) 3600-4400 (16.0-19.6) 360 (1601) (2) (2)
SS 1700-2000 (7.6-8.9) 230 (1023) 3600-4400 (16.0-19.6) 360 (1601) (2) (2)
S4 - - - - 5900-7200 (26.2-32.0) 470 (2090)
  1. Performance data represents the average destructive result when all installation specifications are strictly followed. Variations in sheet hole size, thickness, material and installation methods will affect the loads. PENCOM strongly encourages testing in the application.
  2. Not recommended.