Corrosion-Resistant Protective Plugs

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118 Products

Watertight Square Plugs for Enclosures

Seal unused square holes on the bottom of enclosures, such as floor drainage holes. These plugs have an adhesive-gasket backing that locks out water and dust to keep your electrical components dry and contaminant-free. Stick them in place from the outside.

	For Hole			Head
	Lg.	Wd.	For Max. Panel Thk.	Lg.	Wd.	For Enclosure Rating	Reaches Full Strength, hr.	Certification	Specs. Met		Each
Adhesive







				Polycarbonate

				2"	2"	0.19"	3"	3"	NEMA 12, NEMA 4X, IP56	72	C-UL Recognized Component, UL Recognized Component	UL 508A	6828N11	00000

Screw-In Plugs for Pipe and Tubing

Threaded for the most secure fit on female pipe and fittings. These plugs protect from damage during shipping and storage. They also keep dust, paint, and coatings from blocking holes and threads.

For Straight-Thread Fittings

Image of Product. Front orientation. Contains Annotated. Protective Plugs. Screw In, For Round Holes, For Pipe, For Round Shapes, For Straight-Thread Fittings, Aluminum.

Aluminum

Aluminum—Withstand the highest temperatures of all our pipe and tubing plugs. They’re more wear resistant than plastic but won’t hold up as well to chemicals.

	Thread
	Size	Type	For Tube OD	Ht.	Max. Temp., ° F	Pkg. Qty.		Pkg.
Aluminum



		5/16"-24	UNF	5/32"	11/32"	650	25	3438T16	000000


		3/8"-24	UNF	3/16"	9/32"	650	25	3438T17	00000
		7/16"-20	UNF	1/4"	9/32"	650	25	3438T18	0000
		1/2"-20	UNF	5/16"	5/16"	650	25	3438T19	0000
		9/16"-18	UNF	3/8"	5/16"	650	25	3438T21	0000
		5/8"-18	UNF	3/8"	5/16"	650	25	3438T22	0000
		3/4"-16	UNF	1/2"	7/16"	650	25	3438T23	00000
		7/8"-14	UNF	5/8"	1/2"	650	25	3438T24	00000
		1 1/16"-12	UN	3/4"	15/32"	650	25	3438T25	00000
		1 5/16"-12	UN	1"	7/16"	650	25	3438T26	00000
		1 7/8"-12	UN	1 1/2"	5/8"	650	5	3438T27	00000

For 37° Flared Tube

Aluminum

Aluminum—Withstand the highest temperatures of all our pipe and tubing plugs. They’re more wear resistant than plastic but won’t hold up as well to chemicals.

	Thread
	Size	Type	For Tube OD	Ht.	Max. Temp., ° F	Pkg. Qty.		Pkg.
Aluminum



		3/8"-24	UNF	3/16"	3/8"	650	25	3438T33	000000


		7/16"-20	UNF	1/4"	15/32"	650	50	3438T34	00000
		1/2"-20	UNF	5/16"	15/32"	650	50	3438T35	00000
		9/16"-18	UNF	3/8"	1/2"	650	50	3438T36	00000
		5/8"-18	UNF	3/8"	1/2"	650	25	3438T37	00000
		3/4"-16	UNF	1/2"	19/32"	650	50	3438T38	00000
		7/8"-14	UNF	5/8"	11/16"	650	25	3438T39	00000
		1 1/16"-12	UN	3/4"	21/32"	650	25	3438T41	00000
		1 5/16"-12	UN	1"	23/32"	650	10	3438T42	00000
		1 7/8"-12	UN	1 1/2"	7/8"	650	5	3438T43	00000

Metal Snap-In Panel Plugs

The toughest plugs for panels and sheet metal, these withstand impact and wear better than plastic. They close off unused wiring and access holes, covering sharp edges and blocking out debris. The prongs flex so you can quickly install and remove plugs by hand.

Nickel-Plated Steel—Shiny and strong, the finish adds a layer of corrosion resistance.

		Head			Nickel-Plated Steel
For ID	For Panel Thk.	Dia.	Ht.	Overall Ht.	Pkg. Qty.		Pkg.
1/8"	0.047" to 0.078"	5/16"	1/16"	15/64"	50	9563K81	000000
3/16"	0.016" to 0.062"	3/8"	5/64"	13/64"	50	9563K82	00000
1/4"	0.031" to 0.062"	7/16"	1/16"	15/64"	50	9563K41	00000
9/32"	0.016" to 0.062"	7/16"	1/16"	17/64"	50	9563K39	00000
5/16"	0.047" to 0.078"	7/16"	1/16"	1/4"	50	9563K83	00000
3/8"	0.031"	1/2"	1/16"	15/64"	50	9563K42	00000
3/8"	0.047" to 0.062"	1/2"	1/16"	15/64"	50	9563K261	00000
25/64"	0.062" to 0.093"	1/2"	1/16"	15/64"	50	9563K56	00000
7/16"	0.031" to 0.062"	11/16"	5/64"	1/4"	50	9563K84	00000
15/32"	0.109" to 0.172"	5/8"	1/16"	3/8"	10	9563K96	0000
1/2"	0.031" to 0.062"	11/16"	5/64"	9/32"	50	9563K43	00000
9/16"	0.047" to 0.093"	3/4"	1/16"	9/32"	50	9563K58	00000
5/8"	0.062" to 0.093"	13/16"	5/64"	19/64"	50	9563K24	00000
11/16"	0.031" to 0.062"	7/8"	5/64"	17/64"	50	9563K61	00000
3/4"	0.062" to 0.093"	15/16"	5/64"	19/64"	50	9563K263	00000
3/4"	0.109" to 0.125"	15/16"	5/64"	19/64"	50	9563K45	00000
13/16"	0.047" to 0.093"	1 1/16"	1/16"	1/4"	25	9563K79	00000
7/8"	0.031" to 0.093"	1 1/16"	5/64"	1/4"	25	9563K265	00000
7/8"	0.062" to 0.093"	1 1/16"	1/16"	19/64"	25	9563K46	00000
15/16"	0.031" to 0.078"	1 3/16"	1/16"	9/32"	25	9563K87	00000
1"	0.031" to 0.093"	1 1/8"	3/32"	21/64"	25	9563K267	00000
1"	0.093" to 0.125"	1 1/8"	3/32"	5/16"	25	9563K269	00000
1"	0.125" to 0.156"	1 1/8"	3/32"	21/64"	25	9563K47	00000
1 1/16"	0.031" to 0.125"	1 5/16"	3/32"	19/64"	25	9563K271	00000
1 1/8"	0.031" to 0.125"	1 5/16"	3/32"	11/32"	25	9563K85	00000
1 3/16"	0.031" to 0.093"	1 7/16"	5/64"	19/64"	25	9563K89	00000
1 1/4"	0.062" to 0.093"	1 7/16"	3/32"	11/32"	25	9563K48	00000
1 3/8"	0.031" to 0.125"	1 9/16"	5/64"	13/32"	25	9563K273	00000
1 3/8"	0.047" to 0.125"	1 9/16"	5/64"	13/32"	25	9563K49	00000
1 7/16"	0.125" to 0.156"	1 5/8"	7/64"	7/16"	25	9563K275	00000
1 1/2"	0.031" to 0.062"	1 5/8"	3/32"	13/32"	25	9563K51	00000
1 5/8"	0.031" to 0.125"	1 13/16"	7/64"	23/64"	25	9563K93	00000
1 3/4"	0.031" to 0.093"	1 15/16"	3/32"	11/32"	25	9563K95	00000
2"	0.031" to 0.062"	2 1/4"	1/8"	5/16"	10	9563K54	00000

Metal Square Plugs

Designed to finish off the ends of square metal tubing, these plugs cover rough edges and block dirt and debris. Push into place and then drive with a hammer to secure.

Galvanized Steel—Strong with some rust resistance in wet environments.

Aluminum—For aluminum tubing, use these plugs instead of steel to avoid rust that spreads when different metals are in contact.

	For Inside			Head
	Lg.	Wd.	Ht.	Lg.	Wd.		Each
Galvanized Steel



		1.27"	1.27"	13/16"	1 1/2"	1 1/2"	2990N21	000000


		Aluminum



				0.77"	0.77"	1/2"	1"	1"	2990N23	00000


				1.02"	1.02"	5/8"	1 1/4"	1 1/4"	2990N22	00000
				1.27"	1.27"	13/16"	1 1/2"	1 1/2"	2990N24	00000
				1.77"	1.77"	3/4"	2"	2"	2990N25	00000

Freeze Plugs

Permanently seal the shallow holes left in a component during the casting process.

18-8 Stainless Steel—Our most corrosion-resistant plugs for parts exposed to moisture and the outdoors.

	Ht.	Dia.	Max. Temp.	Pkg. Qty.		Pkg.
18-8 Stainless Steel



	1/8"	0.015"	0.127"	Not Rated	10	9563K111	000000


	1/4"	0.069"	0.252"	Not Rated	10	9563K112	00000
	3/8"	0.106"	0.377"	Not Rated	10	9563K113	00000
	1/2"	0.075"	0.502"	Not Rated	10	9563K114	00000
	5/8"	0.098"	0.628"	Not Rated	10	9563K115	00000
	3/4"	0.138"	0.753"	Not Rated	10	9563K116	00000
	7/8"	0.171"	0.878"	Not Rated	7	9563K117	00000
	1"	0.19"	1.003"	Not Rated	7	9563K118	00000
	1 1/8"	0.2"	1.128"	Not Rated	1	9563K119	0000
	1 1/4"	0.205"	1.253"	Not Rated	5	9563K121	00000
	1 3/8"	0.215"	1.38"	Not Rated	5	9563K122	00000


	1 1/2"	0.217"	1.505"	Not Rated	5	9563K123	00000
	1 5/8"	0.232"	1.63"	Not Rated	1	9563K124	0000
	1 3/4"	0.226"	1.755"	Not Rated	3	9563K125	00000
	1 7/8"	0.237"	1.88"	Not Rated	3	9563K126	00000
	2"	0.241"	2.005"	Not Rated	3	9563K127	00000
	2 1/4"	0.262"	2.255"	Not Rated	3	9563K128	00000
	2 1/2"	0.272"	2.505"	Not Rated	3	9563K129	00000
	2 3/4"	0.295"	2.755"	Not Rated	1	9563K131	0000
	3"	0.31"	3.005"	Not Rated	2	9563K132	00000

Metal Snap-In Panel Plug Assortments

37 Pieces

Whether you’re assembling a panel or doing maintenance on it, these assortments have what you need. They contain tough metal plugs to fit a range of hole sizes in machine panels and sheet metal. Plugs snap in and the flexible prongs keep them in place. Just pull to remove.

Nickel-Plated Steel—Shiny and strong, the finish adds a layer of corrosion resistance.

	Includes	Container Type		Each
Nickel-Plated Steel



	37	Plugs for 3/8” ID (12 ea.), 1/2” ID (10 ea.), 5/8” ID (7 ea.), and 7/8” ID (8 ea.)	Plastic Box	9563K21	000000


	67	Plugs for 1/2" ID (12 ea.), 5/8" ID (10 ea.), 3/4" ID (10 ea.), 7/8" ID (8 ea.), 1" ID (8 ea.), 1-1/8" ID (6 ea.), 1-1/4" ID (5 ea.), 1-3/8" ID (4 ea.), 1-1/2" ID (4 ea.)	Plastic Box	9563K17	00000

Stainless Steel Socket Head Screws


Fully Threaded	Partially Threaded

These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.

Length is measured from under the head.

Silver-Plated 18-8 Stainless Steel—The silver plating helps these screws thread on smoothly during installation. They also won't rust in wet and outdoor environments.

		Head
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
Silver-Plated 18-8 Stainless Steel







				2-56

				1/8"	0.14"	0.086"	Fully Threaded	Coarse	70,000	5	90008A221	00000


				3/16"	0.14"	0.086"	Fully Threaded	Coarse	70,000	5	90008A231	0000
				1/4"	0.14"	0.086"	Fully Threaded	Coarse	70,000	5	90008A241	0000
				3/8"	0.14"	0.086"	Fully Threaded	Coarse	70,000	5	90008A251	0000
				1/2"	0.14"	0.086"	Fully Threaded	Coarse	70,000	5	90008A261	0000




						4-40

						1/4"	0.183"	0.112"	Fully Threaded	Coarse	70,000	5	90008A421	0000


						3/8"	0.183"	0.112"	Fully Threaded	Coarse	70,000	5	90008A431	0000
						1/2"	0.183"	0.112"	Fully Threaded	Coarse	70,000	5	90008A441	0000
						5/8"	0.183"	0.112"	Fully Threaded	Coarse	70,000	5	90008A451	00000
						3/4"	0.183"	0.112"	Fully Threaded	Coarse	70,000	5	90008A461	0000




								6-32

								1/4"	0.226"	0.138"	Fully Threaded	Coarse	70,000	5	90008A621	0000


								3/8"	0.226"	0.138"	Fully Threaded	Coarse	70,000	5	90008A631	0000
								1/2"	0.226"	0.138"	Fully Threaded	Coarse	70,000	5	90008A641	0000
								5/8"	0.226"	0.138"	Fully Threaded	Coarse	70,000	5	90008A651	0000
								3/4"	0.226"	0.138"	Fully Threaded	Coarse	70,000	5	90008A661	0000
								1"	0.226"	0.138"	Partially Threaded	Coarse	70,000	5	90008A671	0000




										8-32

										3/8"	0.27"	0.164"	Fully Threaded	Coarse	70,000	5	90008A821	0000


										1/2"	0.27"	0.164"	Fully Threaded	Coarse	70,000	5	90008A831	0000
										5/8"	0.27"	0.164"	Fully Threaded	Coarse	70,000	5	90008A841	00000
										3/4"	0.27"	0.164"	Fully Threaded	Coarse	70,000	5	90008A851	00000
										1"	0.27"	0.164"	Partially Threaded	Coarse	70,000	5	90008A861	00000




												10-24

												1/2"	5/16"	0.19"	Fully Threaded	Coarse	70,000	5	90008A321	00000


3/4"	5/16"											0.19"	Fully Threaded	Coarse	70,000	5	90008A331	00000
1"	5/16"											0.19"	Partially Threaded	Coarse	70,000	5	90008A341	00000




		10-32

		3/8"	5/16"									0.19"	Fully Threaded	Fine	70,000	5	90008A521	0000


		1/2"	5/16"									0.19"	Fully Threaded	Fine	70,000	5	90008A531	00000
		5/8"	5/16"									0.19"	Fully Threaded	Fine	70,000	5	90008A541	00000
		3/4"	5/16"									0.19"	Fully Threaded	Fine	70,000	5	90008A551	00000
		1"	5/16"									0.19"	Partially Threaded	Fine	70,000	5	90008A561	00000




				1/4"-20

				1/2"	3/8"							1/4"	Fully Threaded	Coarse	70,000	5	90008A711	00000


				5/8"	3/8"							1/4"	Fully Threaded	Coarse	70,000	5	90008A721	00000
				3/4"	3/8"							1/4"	Fully Threaded	Coarse	70,000	5	90008A731	00000
				1"	3/8"							1/4"	Fully Threaded	Coarse	70,000	5	90008A741	00000
				1 1/4"	3/8"							1/4"	Partially Threaded	Coarse	70,000	5	90008A751	00000
				1 1/2"	3/8"							1/4"	Partially Threaded	Coarse	70,000	5	90008A761	00000