Metric Electrical Knockout Plugs

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40 Products

Sanitary Threaded Plugs for Enclosures

Super smooth with round edges that prevent bacteria buildup, these plugs are FDA compliant for food processing areas. Screw them in unused threaded holes for a more secure hold than clamp-on and snap-in plugs. These plugs include a seal that locks out moisture and dust to keep your electrical components dry and contaminant-free. Twist them in place from the outside of the enclosure and then tighten with a hex key from the inside.

Highly-Corrosion-Resistant 316L Stainless Steel—Superior to 304 stainless steel, these plugs won’t pit or weaken when exposed to harsh chemicals, including bleach and salt water.

	Head Dia., mm	For Enclosure Rating		Each
Highly-Corrosion-Resistant 316L Stainless Steel



	M10 × 1.5 mm	19.7	IP66	00000000	00000

Watertight Threaded Plugs for Enclosures

Screw into unused threaded holes to block out water with a more secure hold than clamp-on and snap-in plugs. These plugs include a gasket that locks out moisture and dust to keep your electrical components dry and contaminant-free. Install them from the outside.

	Head Dia.	For Enclosure Rating	Certification	Specs. Met		Each
Nylon



	M12 × 1.5 mm	5/8"	NEMA 4X, IP68	C-UL Recognized Component, UL Recognized Component	UL 508A	0000000	00000


	M16 × 1.5 mm	13/16"	NEMA 4X, IP68	C-UL Recognized Component, UL Recognized Component	UL 508A	0000000	0000
	M20 × 1.5 mm	1"	NEMA 4X, IP68	C-UL Recognized Component, UL Recognized Component	UL 508A	0000000	0000
	M25 × 1.5 mm	1 5/16"	NEMA 4X, IP68	—	—	0000000	0000

Snap-In Panel Plugs

Style 1

Style 3

Close off unused holes to block dust, debris, and moisture from entering machine panels. These plugs also cover sharp edges in sheet metal to prevent cuts. They secure with flexible prongs or a ring, so you can quickly install and remove by hand.

Polyethylene—A balance of wear and chemical resistance for use in a variety of environments. These plugs withstand scratches and scrapes as well as mild acids, solvents, and chemical cleaners.

Nylon—Durable and wear resistant, these plugs also resist oils, solvents, and mild acids.

			Head, mm
	For ID, mm	For Panel Thk., mm	Dia.	Ht.	Overall Ht., mm	Max. Temp., ° F	Color	Pkg. Qty.		Pkg.
Style 1







				Nylon

				6	0.8 to 1.6	10	2	—	180	Off-White	100	0000000	000000


				8	0.8 to 3.5	12	2	—	180	Off-White	100	0000000	00000
				10	0.8 to 3.5	14	2	—	180	Off-White	100	0000000	00000
				12	0.8 to 3.5	16	2	—	180	Off-White	100	0000000	00000
				14	0.8 to 3.5	18	2	—	180	Off-White	100	0000000	00000
				16	0.8 to 3.5	20	2	—	180	Off-White	100	0000000	00000
				18	0.8 to 4	22	2	—	180	Off-White	100	0000000	00000
				20	0.8 to 4	26	2	—	180	Off-White	100	0000000	00000
				22	0.8 to 4	28	2	—	180	Off-White	100	0000000	00000
				24	0.8 to 4	28	2	—	180	Off-White	50	0000000	00000
				26	0.8 to 4	30	2	—	180	Off-White	50	0000000	00000


				Style 3







								Polyethylene

								5	0.5 to 1	10	—	5	140	Black	100	0000000	0000


								6	0.5 to 1.5	13	—	11	140	Black	100	0000000	0000
								15 to 16	0.8 to 2	26	—	8	140	Black	100	0000000	00000
								16 to 18	0.8 to 2	28	—	8	140	Black	100	0000000	00000
								19 to 20	0.8 to 2	30	—	8	140	Black	100	0000000	00000
								21 to 22	0.8 to 2	32	—	8	140	Black	50	0000000	0000
								23 to 24	0.8 to 2	34	—	8	140	Black	50	0000000	0000
								25 to 26	0.8 to 2	35	—	8	140	Black	50	0000000	00000
								27 to 28	0.8 to 2	38	—	8	140	Black	50	0000000	00000
								29 to 30	0.8 to 2	40	—	8	140	Black	50	0000000	00000
								31 to 32	0.8 to 2	42	—	8	140	Black	50	0000000	00000


								33 to 34	0.8 to 2	44	—	8	140	Black	50	0000000	00000

Threaded Plugs for Enclosures

Screw into unused threaded holes in enclosures, outlet boxes, junction boxes, and electrical panels for a more secure hold than clamp-on and snap-in plugs. Use these plugs to protect your electrical components in dusty or hazardous locations. Install them from the outside.

	Head Dia.	For Enclosure Rating	Certification		Each
Nickel-Plated Brass



	M12 × 1.5 mm	9/16"	IP54	CE Marked, C-UL Recognized Component, UL Recognized Component	0000000	00000


	M16 × 1.5 mm	11/16"	IP54	CE Marked, C-UL Recognized Component, UL Recognized Component	0000000	0000
	M20 × 1.5 mm	7/8"	IP54	CE Marked, C-UL Recognized Component, UL Recognized Component	0000000	0000
	M25 × 1.5 mm	1 1/8"	IP54	CE Marked, C-UL Recognized Component, UL Recognized Component	0000000	0000

Locking Panel Plugs

Nylon

Shaking and rattling won’t dislodge these plugs. They have tabs that compress when pushed into the hole and then pop out on the other side to lock in place. These are the most secure panel plugs—you’ll need a tool such as a screwdriver to remove them.

Nylon—Durable and wear resistant, these plugs also resist oils, solvents, and mild acids.

			Head, mm
	For ID, mm	For Panel Thk., mm	Dia.	Ht.	Overall Ht., mm	Max. Temp., ° F	Choose a Color	Pkg. Qty.		Pkg.
Nylon



		13	0.8 to 2.5	14	2	10	220	Black , White	50	00000000	00000


		16	0.8 to 2.5	19	2	10	220	Black	100	00000000	0000
		20	0.8 to 2.5	23	2	10	220	Black	100	00000000	00000
		22	0.8 to 2.5	26	2	12	220	Black , White	100	00000000	0000
		25	0.8 to 2.5	30	2	12	220	Black	50	00000000	0000
		32	0.8 to 2.5	35	2	12	220	Black	50	00000000	00000
		32	0.8 to 2.5	35	2	12	220	White	25	000000000	0000
		34	0.8 to 2.5	38	2	12	220	Black , White	25	00000000	0000