PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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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 ismore
Concealed head studs- CFHA, CFHC, CHA, CHC
Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC 2
Unit of Measure
1 2 3 4 

Part #

Thread Size

Blind Mounting Hole Diameter + .003 - .000

L - Length ± .015

E ± .010

C Max.

Fastener Material

Standard Finish

CAD

CHA-440-4 N/A .112-40 (#4-40) N/A .172 in N/A .250 in N/A .205 in N/A .171 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-632-4 N/A .138-32 (#6-32) N/A .213 in N/A .250 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-832-4 N/A .164-32 (#8-32) N/A .290 in N/A .250 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-440-6 N/A .112-40 (#4-40) N/A .172 in N/A .375 in N/A .205 in N/A .171 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-632-6 N/A .138-32 (#6-32) N/A .213 in N/A .375 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-832-6 N/A .164-32 (#8-32) N/A .290 in N/A .375 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-032-6 N/A .190-32 (#10-32) N/A .312 in N/A .375 in N/A .350 in N/A .311 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-440-8 N/A .112-40 (#4-40) N/A .172 in N/A .500 in N/A .205 in N/A .171 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-632-8 N/A .138-32 (#6-32) N/A .213 in N/A .500 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-832-8 N/A .164-32 (#8-32) N/A .290 in N/A .500 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-032-8 N/A .190-32 (#10-32) N/A .312 in N/A .500 in N/A .350 in N/A .311 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-440-10 N/A .112-40 (#4-40) N/A .172 in N/A .625 in N/A .205 in N/A .171 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-632-10 N/A .138-32 (#6-32) N/A .213 in N/A .625 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-832-10 N/A .164-32 (#8-32) N/A .290 in N/A .625 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-032-10 N/A .190-32 (#10-32) N/A .312 in N/A .625 in N/A .350 in N/A .311 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-440-12 N/A .112-40 (#4-40) N/A .172 in N/A .750 in N/A .205 in N/A .171 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-632-12 N/A .138-32 (#6-32) N/A .213 in N/A .750 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-832-12 N/A .164-32 (#8-32) N/A .290 in N/A .750 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-032-12 N/A .190-32 (#10-32) N/A .312 in N/A .750 in N/A .350 in N/A .311 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-632-16 N/A .138-32 (#6-32) N/A .213 in N/A 1.00 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-832-16 N/A .164-32 (#8-32) N/A .290 in N/A 1.00 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
CHA-032-16 N/A .190-32 (#10-32) N/A .312 in N/A 1.00 in N/A .350 in N/A .311 in N/A Aluminum N/A N/A CAD Icon (for items table)
CFHA-440-4 N/A .112-40 (#4-40) N/A .172 in N/A .250 in N/A .205 in N/A .171 in N/A Aluminum N/A N/A CAD Icon (for items table)
CFHA-632-4 N/A .138-32 (#6-32) N/A .213 in N/A .250 in N/A .250 in N/A .212 in N/A Aluminum N/A N/A CAD Icon (for items table)
CFHA-832-4 N/A .164-32 (#8-32) N/A .290 in N/A .250 in N/A .328 in N/A .289 in N/A Aluminum N/A N/A CAD Icon (for items table)
Unit of Measure
1 2 3 4