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Bushings and Plugs

Heyco® Strain Relief Mounting Hole Punches

Chassis Dimensions			Part No.	Description	Draw\|Stud
Maximum Gauge for Mild Steel	E Mounting Hole Diameter	D To Prevent Rotation
Maximum Gauge for Mild Steel	in. mm.	in. mm.
18 gauge	.375 9,5	.330 8,4	1333	SRP 375-330	.250
18 gauge	.375 9,5	.345 8,8	1334	SRP 375-345	.250
18 gauge	.437 11,1	.390 9,9	1335	SRP 437-390	.250
14 gauge	.500 12,7	.450 11,4	1337	SRP 500-450	.312
14 gauge	.500 12,7	.460 11,7	1339	SRP 500-460	.312
14 gauge	.500 12,7	.465 11,8	1340	SRP 500-465	.312
12 gauge	.562 14,3	.530 13,5	1341	SRP 562-530	.375
12 gauge	.625 15,9	.550 14,0	1342	SRP 625-550	.375
12 gauge	.750 19,0	.660 16,8	1344	SRP 750-660	.437
12 gauge	.875 22,2	.770 19,6	1345	SRP 875-770	.437
12 gauge	.875 22,2	.840 21,3	1346	SRP 875-840	.437

Punches strain relief mounting holes.
Double "D" configuration protects your strain relief fasteners and cable assembly from the forces of twist.
Quick and easy operation.
Unique strain relief design prevents metal distortion during punching operation.
Nylon fastener tool allows for the punching of mild steel, aluminum, fiberglass and plastic.
Wrench operated.
Consult Heyco for additional sizes.

Heyco® Strain Relief Mounting Hole Plugs

Standardize Panel Design

Click on one of the green links below to download a CAD Drawing of this product.

Chassis Dimensions			Part No.		Description	Part Dimensions
Maximum Thickness	E Mounting Hole Dia	D - To Prevent Rotation	Black	White		B Head Diameter	C Overall Height	A Head Thickness
in. mm.	in. mm.	in. mm.	Black	White		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 19,0	.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
.125 3,2	.512 13,0	.453 11,5	1890	1891	RP-115-130	.578 14,7	.406 10,3	.062 1,6

Standard nylon fastener color: Black. White and others available at extra charge (only in large quantities).
*Rectangular plug to fill unneeded Lockit SR Mounting holes.

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 Strain Relief mounting hole plug head tapers to a thin edge.
Strain relief mounting hole plug locks firmly in panels up to 1/8"(3,2mm) thick.
Quick and easy installation.
Each Strain Relief Mounting Hole Plug is molded of type 6/6 nylon. ASTM D-4066; flammability classification 94V-2; temperature index 125°C.