Heyco® Shorty Plugs
Recognized under the Components Program of Underwriters' Laboratories File #E-15331
Certified by Canadian Standards Association File #LR-8919
Limited protrusion (1/8" or 3,2mm) inside the panel.
Eight sizes for use in "odd 32nd" diameter holes.
Seven sizes for use in popular "even 32nd" diameter holes.
Locks firmly into chassis up to 1/16 (1,6mm) thick. Quick and easy installation.
Molded of type 6/6 nylon. ASTM D-4066; flammability classification 94V-2; temperature index 75°C.
Chassis Dimensions
Part No.
Part Dimensions
Maximum Thickness
Mounting Hole Diameter
Black
White
UL/CSA Description
B Head Diameter
C Overall Height
A Head Thickness
in. mm.
in. mm.
in. mm.
in. mm.
in. mm.
.062 1,6
.218 5,5
1654
1655
SP-218
9/32 7,1
1/4 6,4
1/16 1,6
.062 1,6
.281 7,1
1660
1661
SP-281
11/32 8,7
1/4 6,4
1/16 1,6
.062 1,6
.312 7,9
1678
1679
SP-312
3/8 9,5
1/4 6,4
1/16 1,6
.062 1,6
.343 8,7
1663
1664
SP-343
13/32 10,3
1/4 6,4
1/16 1,6
.062 1,6
.375 9,5
1681
1682
SP-375
15/32 11,9
1/4 6,4
1/16 1,6
.062 1,6
.406 10,3
1666
1667
SP-406
15/32 11,9
1/4 6,4
1/16 1,6
.062 1,6
.437 11,1
1684
1685
SP-437
17/32 13,5
1/4 6,4
1/16 1,6
.062 1,6
.468 11,9
1669
1670
SP-468
17/32 13,5
1/4 6,4
1/16 1,6
.062 1,6
.500 12,7
1687
1688
SP-500
37/64 14,7
1/4 6,4
1/16 1,6
.062 1,6
.531 13,5
1672
1673
SP-531
19/32 15,1
1/4 6,4
1/16 1,6
.062 1,6
.593 15,1
1675
1676
SP-593
11/16 17,5
1/4 6,4
1/16 1,6
.062 1,6
.625 15,9
1690
1691
SP-625
23/32 18,3
1/4 6,4
1/16 1,6
.062 1,6
.750 19,0
1693
1694
SP-750
27/32 21,4
1/4 6,4
1/16 1,6
.062 1,6
.781 19,8
1696
1697
SP-781
57/64 22,6
1/4 6,4
1/16 1,6
.062 1,6
.875 22,2
1699
1700
SP-875
31/32 24,6
1/4 6,4
1/16 1,6
.062 1,6
1.00 25,4
1702
1703
SP-1000
1.20 30,5
1/4 6,4
Standard Color: Black. White and others available at extra charge (only in large quantities).
Heyco® Double "D" Plugs
Recognized under the Components Program of Underwriters' Laboratories File #E-15331
Certified by Canadian Standards Association File #LR-8919
Closes unwanted strain relief mounting holes or other chorded or "DD" holes; that is, holes punched or molded with two opposing flats.
Convex, matte finish head tapers to a thin edge.
Locks firmly in panels up to 1/8" (3,2mm) thick.
Quick and easy installation.
Molded of type 6/6 nylon. ASTM D-4066; flammability classification 94V-2; temperature index 125°C.
Chassis Dimensions
Part No.
Part Dimensions
Maximum Thickness
E Mounting Hole Diameter
D To Prevent Rotation
Black
White
UL/CSA Description
B Head Diameter
C Overall Height
A Head Thickness
in. mm.
in. mm.
in. mm.
in. mm.
in. mm.
in. mm.
.125 3,2
.437 11,1
.390 9,9
2488
2489
DD-437-390
.531 13,5
.406 10,3
.062 1,6
.125 3,2
.500 12,7
.445 11,3
2491
2492
DD-500-445
.578 14,7
.406 10,3
.062 1,6
.125 3,2
.562 14,3
.530 13,5
2494
2495
DD-562-530
.656 16,7
.406 10,3
.062 1,6
.125 3,2
.625 15,9
.550 14,0
2497
2498
DD-625-550
.718 18,2
.406 10,3
.062 1,6
.125 3,2
.750 19,1
.625 15,9
2503
2504
DD-750-625
.921 23,4
.406 10,3
.062 1,6
.125 3,2
.875 22,2
.770 19,6
2509
2510
DD-875-770
1.015 25,8
.453 11,5
.062 1,6
Standard Color: Black. White and others available at extra charge (only in large quantities).
