These studs ensure permanent mounting in metal sheets as thin as .062 in.
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 simple using a hollow anvil and solid punch. Place the head of the fastener in the hole and insert using any standard press. Displaced sheet metal flows smoothly around the head into the undercut.
Unit of Measure
Specifications
Thread Size
N/A.138-32 (#6-32)
Thread Code
N/A632
Length Code
N/A4
Material Code
N/AA
Min. Sheet Thickness
N/A.093 in
Blind Mounting Hole Diameter + .003 - .000
N/A.213 in
Min. Depth of Blind Hole1
N/A.075 in
L - Length ± .015
N/A.250 in
A Max.
N/A.071 in
E ± .010
N/A.250 in
C Max.
N/A.212 in
Min. Dist. Hole C/L to Edge
N/A.188 in
Max. Hole in Attached Parts
N/A.160 in
For Use in Sheet Hardness2
N/AHRB 50 / HB 82 or less
Thread Specification
N/AExternal, ANSI B1.1, 2A
Fastener Material
N/AAluminum
CAD Supplier
N/APennEngineering® (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.