3999 Heyco, 3999 Datasheet
3999
Manufacturer Part Number
3999
Description
Mounting Hardware KOS1 1.375 SILVER GRAY
Manufacturer
Heyco
Datasheet
1.3997.pdf
(1 pages)
Specifications of 3999
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
5-15
•
•
•
•
•
•
Plugs electrical knock-outs.
Molded in gray color to resemble
galvanized steel.
Multiple trade sizes fit 1/2˝ to 2˝
knock-out holes.
Locks firmly in boxes up to 1/8˝
thick, except for KOS2 and KOSTs
which lock firmly in boxes up to
1/4˝ thick.
Installs quickly with fingertip
pressure (no tool required).
Economical.
B
Heyco Products, Inc.
Quick
Specs
A
Heyco
Standard color silver gray. Locking fingers in fractional increments up to the maximum panel thickness.
Approximate Head Thickness: .063˝ (1,6 mm). Thickness may vary.
Standard color silver gray. Locking fingers in fractional increments up to the maximum panel thickness.
Approximate Head Thickness: .063˝ (1,6 mm). Thickness may vary.
Heyco
.125
.125
.125
.125
.125
.250
.250
.250
.250
.250
.250
.250
Material
Certifications
Flammability Rating
Material Temperature Index 275°F (125°C)–Maximum temperature on part not to exceed 221°F (105°C)
in.
Maximum
Thickness
in.
“ T h e F i r s t N a m e i n W i r e P r o t e c t i o n ”
Maximum
Thickness
PANEL DIMENSIONS
PANEL DIMENSIONS
1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • Web site: www.heyco.com
mm.
3,2
3,2
3,2
3,2
3,2
6,4
mm.
6,4
6,4
6,4
6,4
6,4
6,4
Mounting Hole
1.093
1.375
1.750
2.000
2.500
.875
®
in.
Diameter
®
1.093
1.375
1.750
2.000
2.500
Mounting Hole
.875
in.
Thick Panel Knock-Out Seals
Diameter
Knock-Out Seals
mm.
22,2
27,8
34,9
44,5
50,8
63,5
mm.
22,2
27,8
34,9
44,5
50,8
63,5
6/6 Nylon
Recognized under the Component Program of Underwriters’ Laboratories,
File E51579
Certified by Canadian Standards Association, File LR8919
94V-2
TRADE
1-1/4
1-1/2
SIZE
B
1/2
3/4
1
2
PART NO.
Silver
3991
3992
3993
3994
3995
4002
PART NO. DESCRIPTION
Gray
3997
3998
3999
4000
4001
4002
TRADE SIZE
KOST 1/2
KOST 3/4
KOST 1
KOST 1-1/4
KOST 1-1/2
KOS 2
KOS 1/2
KOS 3/4
KOS 1
KOS 1-1/4
KOS 1-1/2
KOS 2
Silver
Gray
A
Head Diameter
1.015
1.218
1.500
1.906
2.140
2.730
Head Diameter
1.015
1.218
1.500
1.906
2.140
2.730
in.
in.
A
PART DIMENSIONS
PART DIMENSIONS
A
mm.
25,8
31,0
38,1
48,4
54,4
69,3
mm.
25,8
31,0
38,1
48,4
54,4
69,3
Overall Height
Overall Height
.562
.562
.562
.562
.579
.750
.453
.453
.453
.453
.453
.750
in.
in.
B
B
mm.
mm.
14,3
14,3
14,3
14,3
14,7
19,1
11,5
11,5
11,5
11,5
11,5
19,1
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