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PEM® self-clinching studs are installed by placing them in properly sized holes in the sheets and squeezing into place with any standard press. The squeezing action embeds the head of the stud into the sheet. The metal displaced by the head flows smoothly and evenly around the ribs and into the annular groove – creating a flushhead assembly and securely locking the stud into the sheet with high torque-out and pushout resistances.

FH4 & FHP (flush-head) Studs for Stainless Steel are designedmore
Unit of Measure

Thread Size x Pitch

M4 x 0.7

Thread Code

M4

Length Code

8

Material Code

4

Sheet Thickness

1.00 to 2.40 mm

Hole Size in Sheet + 0.08

4 mm

Max. Hole in Attached Parts

4.7 mm
L - Length ± 0.41
8 mm
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H ± 0.4

5.90 mm
S Max.2 2.4 mm
Min. Dist. Hole C/L to Edge3 7.2 mm

For Use in Sheet Hardness

HRB 92 / HB 195 or Less

Thread Specification

External, ASME B1.13M, 6g

Fastener Material

400 Series Stainless Steel

Standard Finish

Passivated and/or tested per ASTM A380

CAD Supplier

PennEngineering® (PEM®)

Inventory

  • 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 Threads are gageable to within 2 pitches of the “S” Max. dimension. A class 3B/5H maximum material commercial nut shall pass up to the “S” Max. dimension.
  • 3 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.