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PEM Type SCBR™ Spinning Clinch Bolt installs by simply pressing it into a properly sized hole. The controlled clinching action permanently captivates the screw and spring in the panel and allows the screw to spin freely in the sheet.

Features and Benefits
  • Permanently captivates into sheets as thin as .040” / 1.02 mm.
  • Spring keeps screw retracted when disengaged.
  • Provides economical self-retracting captive screw.
  • Replaces loose hardware.
  • Allows for close centerline-to-edge distance.
  • RoHS compliant.
Type SCBR screws are shipped with mating springs.
Unit of Measure

Thread Size

N/A .138-32 (#6-32)



Thread Code

N/A 632

Screw Length Code

N/A 8

Min. Sheet Thickness

N/A .040 in

Hole Size in Sheet + 0.003 - 0.000

N/A .138 in

E + .005 -.010

N/A .381 in SCBR_2_1.jpg

H1 ± .005

N/A .170 in

H2 Ref.

N/A .500 in
L - Length ± .0151 N/A .500 in

T Nom.

N/A .130 in

Driver Size

N/A #2 Phillips SCBR_Driver-Size_1.jpg
Min. Dist. Hole C/L to Edge2 N/A .19 in

Thread Specification

N/A ANSI B1.1, 2A


N/A Heat-Treated Carbon Steel


N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

Finish Spring

N/A Natural Finish

For Use in Sheet Hardness

N/A HRB 80 or Less (Hardness Rockwell “B” Scale) / HB 150 or Less (Hardness Brinell)

CAD View

N/A Unfastened

CAD Supplier

N/A PennEngineering® (PEM®)


N/A {0}
  • 1 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”
  • 2 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.