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www.captive-fastener.com •
201-337-6800 FAX: 201-337-1012
captive fastener corporation
2014
L
D
.09 in.
(2.3 mm)
max.
.020 in.
.51 mm
max.
Shank profile may vary.
CKFH broaching-type studs are electroplated with tin so
they are readily solderable. Thus, they can be used both
as solderable connectors and as permanently mounted
mechanical fasteners.
Series Material Finish
Phosphor
CKFH Bronze
CDA-510
Thread: External 2A, ANSI B1.1 (6g ANSI/ASME B1.13M).**
Use in: Materials with Rockwell Hardness of B-55 or less.
**See Note 3 on Page 6 for Gauging Spec.
Dimensions & Specifications
Max. Size
Clear. Max. Nut Anvil
L Hole in Tight. Hole
Thread Part Length ±.010 in. D +.003 Attach. Torque +.003
Size Number .250 .312 .375 .500 .625 .750 ±.010 –.000 Parts (in.-lbs.) Min. –.000 Min.
#4-40 CKFH440 -4 -5 -6 -8 -10 -12 .18 .120 .145 4 .15 .113 .060
#6-32 CKFH632 -4 -5 -6 -8 -10 -12 .20 .140 .170 8 .19 .140 .060
#8-32 CKFH832 -5 -6 -8 -10 -12 .225 .166 .195 15 .20 .166 .060
#10-32 CKFH1032 -6 -8 -10 -12 .25 .189 .220 18 .20 .191 .060
Max. Size
Clear. Anvil
L Hole in Max. Nut Hole
Thread Part Length ±.25 mm D +.08 Attach. Tight. +.08
Size Number 6 8 10 12 15 18 ±.25 –.00 Parts Torque Min. –.00 Min.
M3x0.5 CKFHM3 -6 -8 -10 -12 -15 -18 4.58 3 3.7 .45 3.8 3.1 1.53
M4x0.7 CKFHM4 -6 -8 -10 -12 -15 -18 5.74 4.2 4.8 1.60 5.1 4.1 1.53
M5x0.8 CKFHM5 -6 -8 -10 -12 -15 -18 6.60 5 5.8 2.10 5.3 5.1 1.53
INCH (in.)
Installation & Performance Data
METRIC (mm)
INCH (in.)
METRIC (mm)
Fiberglass .060 in. (1.5 mm)
Thread Size Installation Force (lbs.) Pushout (lbs.) Torque-out (in.-lbs.)
#4-40 400 65 7
#6-32 400 70 11
#8-32 400 80 16
#10-32 400 90 17
Thread Installation Force Pushout Torque-out
Size (kN) (N) (N•m)
M3 1.80 285 .79
M4 1.80 355 1.80
M5 1.80 400 1.92
*See Finish Spec. on Page 6.
Electro Tin Plating
ASTM B545 Class B
(Zinc* Optional)
Part Number Structure:
CKFH 440-4
Length Code
Thread Code
Series
Broaching-Type Studs
Series CKFH
41550_Captive_2011_Text_Catalog 3/10/14 11:39 AM Page 57
