Self-Clinching Stand-Off Metric
Part Diagram
HyperLink PDF Spec Sheet



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Hardened Steel - Maximum Panel Hardness - Rockwell-85
Thread Size M3 M3 M3.5 M4 M5
Hole in Sheet +.08 -.00 4.2 5.4 5.4 7.2 7.2
Diameter +0.0 - 0.13 D 4.19 5.38 5.38 7.11 7.11
Hex Size S 4.8 6.4 6.4 7.9 7.9
Depth T ±0.4 Length L Part Number
4.0 8 BFBSO-M3-8 BFBSO-3.5M3-8 BFBSO-M3.5-8 BFBSO-M4-8 BFBSO-M5-8
10 BFBSO-M3-10 BFBSO-3.5M3-10 BFBSO-M3.5-10 BFBSO-M4-10 BFBSO-M5-10
5.0 12 BFBSO-M3-12 BFBSO-3.5M3-12 BFBSO-M3.5-12 BFBSO-M4-12 BFBSO-M5-12
14 BFBSO-M3-14 BFBSO-3.5M3-14 BFBSO-M3.5-14 BFBSO-M4-14 BFBSO-M5-14
6.5 16 BFBSO-M3-16 BFBSO-3.5M3-16 BFBSO-M3.5-16 BFBSO-M4-16 BFBSO-M5-16
9.5 18 BFBSO-M3-18 BFBSO-3.5M3-18 BFBSO-M3.5-18 BFBSO-M4-18 BFBSO-M5-18
20 BFBSO-3.5M3-20 BFBSO-M3.5-20 BFBSO-M4-20 BFBSO-M5-20
22 BFBSO-3.5M3-22 BFBSO-M3.5-22 BFBSO-M4-22 BFBSO-M5-22
25 BFBSO-3.5M3-25 BFBSO-M3.5-25 BFBSO-M4-25 BFBSO-M5-25


Material and Thread Information
Material: Carbon Steel, Heat Treated
Finish: Zinc Plated With Clear Chromate
Threads: ANSI / ASME B 1.13-1989
Maximum recommened panel hardness: Rockwell B-80