Registered UsersSign In
Search Catalog
      GO   
 All Categories    Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Unified
PennEngineering
All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Studs and Pins for Sheet Metal > Concealed Head Studs – Types CFHA, CFHC, CHA, CHC > Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Unified > Part # CHA-032-8  

Part # CHA-032-8, Concealed-Head Studs - Types CHA,CFHA,CHC,CFHC - Unified


    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

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.





 Specifications   

Thread Size

.190-32 (#10-32)

Thread Code

032

Length Code

8

Material Code

A

Min. Sheet Thickness

.062 in

Blind Mounting Hole Diameter + .003 - .000

.312 in

Min. Depth of Blind Hole1

.043 in

L - Length ± .015

View
.500 in

A Max.

.041 in

E ± .010

.350 in

C Max.

.311 in

Min. Dist. Hole C/L to Edge

.250 in

Max. Hole in Attached Parts

.210 in

For Use in Sheet Hardness2

HRB 50 / HB 82 or less

Thread Specification

External, ANSI B1.1, 2A

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.


 MORE IMAGES 

·  CHA_CHC_CFHA_CFHC_Installed



 DOWNLOADS 

PEM Bulletin CH

View Animation

PEMSERTER® Tooling Selector