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hole gauge chain, 29.0 × 12.0 × 3 mm, two holes at PEM's hole size in sheet for FHS / FHLS metric studs

hole gauge chain, 29.0 × 12.0 × 3 mm, two holes at PEM's hole size in sheet for FHS / FHLS metric studs: Ø3.0 (M3) and Ø4.0 (M4) mm, nominal = lower limit of +0.08 mm, round pads (4 mm ring) joined by a 6 mm bar; thickness and spacing are Xem choices

Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

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From the full sheet

PEM self-clinching studs (FH, FHS, FHLS): hole size, minimum sheet thickness, edge distance, #2-56 to #8-32 and M3–M4 + hole gauges: every size, notes, mating features and sources. What hole size and sheet thickness for a PEM FH flush-head stud, and how far from the edge?

Other sizes