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No matter how sophisticated or advanced, electronic components must be attached reliably and securely if they are to deliver optimum performance. We offer several fastener products for use with PC boards to satisfy component-to-board, board-to-board, and board-to-chassis attachment needs.

Broach/flare-mount standoffs offer greater pullout performance.
Standoffs, flare mount-KFB3
Unit of Measure
Items Standoffs, flare mount-KFB3
KFB3-M3-2ET
Broach/Flare-Mount Standoffs - Type KFB3 - Metric
Standoffs, flare mount-KFB3
KFB3-M4-2ET
Broach/Flare-Mount Standoffs - Type KFB3 - Metric
Standoffs, flare mount-KFB3
KFB3-M3-3ET
Broach/Flare-Mount Standoffs - Type KFB3 - Metric
Standoffs, flare mount-KFB3
KFB3-M4-3ET
Broach/Flare-Mount Standoffs - Type KFB3 - Metric
Standoffs, flare mount-KFB3
KFB3-M3-4ET
Broach/Flare-Mount Standoffs - Type KFB3 - Metric
Thread Size x Pitch N/A M3 x 0.5 N/A M4 x 0.7 N/A M3 x 0.5 N/A M4 x 0.7 N/A M3 x 0.5
L ± 0.13 N/A 2 mm a1089.jpg N/A 2 mm a1089.jpg N/A 3 mm a1089.jpg N/A 3 mm a1089.jpg N/A 4 mm a1089.jpg
A (Shank) Max. N/A 2.29 mm
Sheet Thickness1 N/A 1.27 to 1.65 mm
Hole Size in Sheet + 0.13 - 0.03 N/A 4.22 mm N/A 6.4 mm N/A 4.22 mm N/A 6.4 mm N/A 4.22 mm
B ± 0.08 N/A 3.23 mm N/A 5.23 mm N/A 3.23 mm N/A 5.23 mm N/A 3.23 mm
C Max. N/A 4.2 mm N/A 6.33 mm N/A 4.2 mm N/A 6.33 mm N/A 4.2 mm
E ± 0.13 N/A 5.56 mm N/A 8.74 mm N/A 5.56 mm N/A 8.74 mm N/A 5.56 mm
F - Minimum Thread Length N/A 2.00 mm N/A 2.00 mm N/A 3.00 mm N/A 3.00 mm N/A 4.00 mm
K ± 0.08 N/A 4.55 mm N/A 6.68 mm N/A 4.55 mm N/A 6.68 mm N/A 4.55 mm
P ± 0.25 N/A 1.00 mm
Min. Dist. Hole C/L to Edge N/A 4.33 mm N/A 6.36 mm N/A 4.33 mm N/A 6.36 mm N/A 4.33 mm
Thread Specification N/A Internal, ASME B1.13M, 6H
Fastener Material N/A CDA-353 Brass
Standard Finish N/A Electro-Plated Tin, ASTM B545, Class B with Preservative Coating, Annealed
Optional Finish N/A
CAD Supplier N/A PennEngineering® (PEM®)
  • 1 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.