CFHC-M4-12

Concealed-Head Studs – Types CHA,CFHA,CHC,CFHC

CFHC-M4-12

Concealed-Head Studs – Types CHA,CFHA,CHC,CFHC

These studs ensure permanent mounting in metal sheets as thin as 2.4mm.

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 Code
M4
Thread Size
M4 x 0.7
Thread Specification
6g, ANSI / ASME B1.13M, External
Fastener Material
300 Series Stainless Steel
Material Code
C
Standard Finish
Passivated and/or tested
For Use in Sheet Hardness
HRB 70 / HB 125 or Less
Length Code
12
Product Category
Concealed-Head Studs – Types CHA,CFHA,CHC,CFHC
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103705
Application Type
Aerospace, Automotive, Automotive Electronics, Commercial Vehicles, Datacom, Electric Vehicle Chargers, Electric Vehicles, Industrial, Manufacturing & Sheet Metal Fabrication, Medical, Renewable Energy, Telecom
Base Panel Material
Aluminum, Steel, Water Tightness
Brand
PEM
Fastener Characteristics
Threaded External
Industry
Automotive, Automotive Electronics, Datacom & Telecom, Defense, Industrial & Commercial, Medical
Installation Equipment/Method
C-Frame Automatic Feed, C-Frame Manual Feed
PEM Product Family
CH
Product Type
Studs
Technology Type
Self-Clinching
Unit (Metric/Unified)
Metric
A Max._mm
1.8mm
Blind Mounting Hole Diameter + 0.08_mm
7.37mm
E ± 0.25_mm
8.33mm
L Len Pm 015in Or 4mm
12mm
Max. Hole in Attached Parts_mm
4.6mm
Min. Depth of Blind Hole_mm
1.91mm
Min. Dist. Hole C/L to Edge_mm
5.6mm
Min. Sheet Thickness_mm
2.4mm
C Max._mm
7.35mm

Resources

Installation & Performance Data

ch-chc-cfhc-cha-cfha-studs-metric
TYPE THREAD CODE MAX. TIGHTENING TORQUE REF. (N•m) TEST SHEET MATERIAL INSTALLATION (kN) PULLOUT (N)
CFHC M4 2 Cold-Rolled Steel 14.7 1955
CFHC M4 2 5052-H34 Aluminum 13.3 1375

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