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These studs ensure permanent mounting in metal sheets as thin as 1.60mm.

The fastener head is locked securely in a blind, milled hole and is able to handle substantial loads. The concealed-head feature allows the side of the sheet opposite installation to remain smooth.

Sheet preparation only requires a milled blind hole to the recommended minimum depth. Center-cutting end mills for hole preparation are available from PennEngineering. Installation of the concealed-head studs and standoffs is
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Unit of Measure

Specifications

Thread Size x Pitch

M4 x 0.7

Thread Code

M4

Length Code

6

Material Code

A

Min. Sheet Thickness

2.4 mm

Blind Mounting Hole Diameter + 0.08

7.37 mm
Min. Depth of Blind Hole1 1.91 mm

L - Length ± 0.4

6 mm a1395.jpg

A Max.

1.8 mm

E ± 0.25

8.33 mm

C Max.

7.35 mm

Min. Dist. Hole C/L to Edge

5.6 mm

Max. Hole in Attached Parts

4.60 mm
For Use in Sheet Hardness2 HRB 50 / HB 82 or less

Thread Specification

External, ANSI / ASME B1.13M, 6g

Fastener Material

Aluminum

CAD Supplier

PennEngineering® (PEM®)
  • 1 Blind holes may be deeper than minimums except where sheet material is at or near minimum thickness. Fasteners should always be installed so the flange is flush with the surface of the sheet.
  • 2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.