Pole Sockets | McMaster-Carr

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107 Products

Aluminum Slip-On Framing and Fittings

Half the weight of steel, this aluminum framing resists corrosion in wet environments. Slip the fittings over rails to construct custom railings, guard rails, storage racks, and shelving. Tighten the included set screws for a secure hold.

Rail Mounts


L-Shape	Oval	Oval Adjustable Angle	Round	Round Adjustable Angle	Triangle	Rectangular

Rail mounts attach to rails on one end and have a flange on the other end to attach to floors, walls, and ceilings.

Adjustable Angle—Adjustable-angle fittings can be positioned at any angle. Tighten the set screw to secure.

Anodized Aluminum—Anodized aluminum resists corrosion and wear better than uncoated aluminum and has a finished appearance.

Powder-Coated Aluminum—Black powder-coated aluminum blends in with backgrounds and hides dirt and grime.

			Flange				Mounting Holes
	For Rail OD	For Pipe Size	Lg.	Wd.	Dia.	Overall Ht.	No. of	Dia.	Mounting Fasteners Included	Includes		Each
Oval Adjustable Angle







				Aluminum

				1 5/8"	1 1/4	6"	2 5/8"	—	5 3/8"	—	—	No	Set Screws	4698T307	000000


				1 7/8"	1 1/2	6"	2 5/8"	—	5 3/8"	—	—	No	Set Screws	4698T306	00000


				Round Adjustable Angle







								Aluminum

								1"	3/4	—	—	2 7/8"	3 1/8"	3	5/16"	No	Set Screws	4698T77	00000


								1 3/8"	1	—	—	2 7/8"	3 1/8"	3	5/16"	No	Set Screws	4698T78	00000
								1 5/8"	1 1/4	—	—	3 3/8"	3 3/4"	3	7/16"	No	Set Screws	4698T79	00000
								1 7/8"	1 1/2	—	—	3 3/8"	4 1/8"	3	7/16"	No	Set Screws	4698T81	00000




										Anodized Aluminum

										1 5/8"	1 1/4	—	—	3 3/8"	3 13/16"	3	7/16"	No	Set Screws	4698T317	00000


										1 7/8"	1 1/2	—	—	3 3/8"	4 1/8"	3	7/16"	No	Set Screws	4698T318	00000




												Black Powder-Coated Aluminum

												1 5/8"	1 1/4	—	—	3 3/8"	3 13/16"	3	7/16"	No	Set Screws	4698T355	00000


												1 7/8"	1 1/2	—	—	3 3/8"	4 1/8"	3	7/16"	No	Set Screws	4698T356	00000


												L-Shape







																Aluminum

																1 5/8"	1 1/4	5 3/4"	3 1/8"	—	3 1/8"	4	7/16"	No	Set Screws	4698T157	00000


1 7/8"	1 1/2															6 3/8"	3 5/8"	—	3 1/8"	4	7/16"	No	Set Screws	4698T158	00000


Oval







																Aluminum

																1 3/8"	1	5 1/8"	3"	—	3 5/8"	2	9/16"	No	Set Screws	4698T133	00000


				1 5/8"	1 1/4											5 3/4"	2 1/2"	—	2 1/4"	—	—	No	Set Screws	4698T155	00000
				1 7/8"	1 1/2											6"	2 3/4"	—	3"	—	—	No	Set Screws	4698T156	00000




						Anodized Aluminum

						1 5/8"	1 1/4									5 3/4"	2 1/2"	—	2 3/16"	—	—	No	Set Screws	4698T328	00000


						1 7/8"	1 1/2									6"	2 3/4"	—	3"	—	—	No	Set Screws	4698T329	00000




																Black Powder-Coated Aluminum

								1 5/8"	1 1/4							5 3/4"	2 1/2"	—	2 13/16"	—	—	No	Set Screws	4698T364	00000


								1 7/8"	1 1/2							6"	2 3/4"	—	3"	—	—	No	Set Screws	4698T365	00000


								Round







																Aluminum

																1"	3/4	—	—	2 1/2"	1 3/4"	1	7/16"	No	Set Screws	4698T52	00000


																1"	3/4	—	—	2 1/2"	1 3/4"	3	3/16"	No	Set Screws	4698T25	00000
																1 3/8"	1	—	—	3"	2 1/8"	—	—	No	Set Screws	4698T53	00000
												1 3/8"	1			—	—	3"	2 1/8"	3	1/4"	No	Set Screws	4698T26	00000
												1 5/8"	1 1/4			—	—	3 1/2"	2 1/2"	—	—	No	Set Screws	4698T54	00000
												1 5/8"	1 1/4			—	—	4 1/2"	2 1/8"	4	7/16"	No	Set Screws	4698T146	00000
												1 7/8"	1 1/2			—	—	3 3/4"	2 5/8"	—	—	No	Set Screws	4698T55	00000
												1 7/8"	1 1/2	—		—	4 1/2"	2 3/8"	4	7/16"	No	Set Screws	4698T147	00000




														Anodized Aluminum

														1 5/8"	1 1/4	—	—	3 1/2"	2 7/16"	—	—	No	Set Screws	4698T335	00000


1 5/8"	1 1/4													—	—	4 1/2"	2 1/8"	4	7/16"	No	Set Screws	4698T326	00000
1 7/8"	1 1/2													—	—	3 3/4"	2 9/16"	—	—	No	Set Screws	4698T336	00000
1 7/8"	1 1/2													—	—	4 1/2"	2 5/16"	4	7/16"	No	Set Screws	4698T327	00000




		Black Powder-Coated Aluminum

		1 5/8"	1 1/4											—	—	3 1/2"	2 7/16"	—	—	No	Set Screws	4698T371	00000


		1 5/8"	1 1/4											—	—	4 1/2"	2 1/8"	4	7/16"	No	Set Screws	4698T363	00000
		1 7/8"	1 1/2											—	—	3 3/4"	2 9/16"	—	—	No	Set Screws	4698T372	00000


		Triangle







														Aluminum

														1"	3/4	3 1/4"	3 1/4"	—	1 7/8"	3	5/16"	No	Set Screws	4698T213	00000


						1 3/8"	1							3 7/8"	3 3/4"	—	2 1/8"	3	5/16"	No	Set Screws	4698T6	00000
						1 5/8"	1 1/4							3 7/8"	4 1/4"	—	2 1/2"	3	7/16"	No	Set Screws	4698T7	00000
						1 7/8"	1 1/2							4 1/2"	4 1/2"	—	2 3/4"	3	7/16"	No	Set Screws	4698T8	00000




														Anodized Aluminum

								1 5/8"						1 1/4	3 7/8"	4 1/4"	—	2 1/2"	3	7/16"	No	Set Screws	4698T331	00000


								1 7/8"	1 1/2					4 1/2"	4 7/16"	—	2 3/4"	3	7/16"	No	Set Screws	4698T332	00000




										Black Powder-Coated Aluminum

										1 5/8"	1 1/4			3 7/8"	4 1/4"	—	2 1/2"	3	7/16"	No	Set Screws	4698T366	00000


										1 7/8"	1 1/2			4 1/2"	4 7/16"	—	2 3/4"	3	7/16"	No	Set Screws	4698T367	00000


										Rectangular







													Aluminum

													1 3/8"		1	3 7/8"	2"	—	4 1/8"	2	9/16"	No	Set Screws	4698T72	00000


													1 5/8"		1 1/4	4 3/8"	2"	—	5 1/2"	2	9/16"	No	Set Screws	4698T95	00000
													1 7/8"		1 1/2	4"	4"	—	4"	4	1/2"	No	Set Screws	4698T105	00000

Through-Hole Rail Mounts


55° Flush	Flush

Offset	Adjustable Angle Offset

Through-hole fittings allow rails to run all the way through.

Through-hole rail mounts secure long runs of railing.

Adjustable Angle—Adjustable-angle fittings can be positioned at any angle. Tighten the set screw to secure.

Anodized Aluminum—Anodized aluminum resists corrosion and wear better than uncoated aluminum and has a finished appearance.

Powder-Coated Aluminum—Black powder-coated aluminum blends in with backgrounds and hides dirt and grime.

UL 2703—Fittings that meet UL 2703 are approved for use in solar rack mounting systems.

				Flange			Mounting Holes
	For Rail OD	For Pipe Size	No. of Through Holes	Lg.	Wd.	Overall Ht.	No. of	Dia.	Mounting Fasteners Included	Includes	Specs. Met		Each
Flush







				Aluminum

				1"	3/4	1	3 1/2"	1 7/8"	1 3/4"	2	5/16"	No	Set Screws	UL 2703	4698T1	000000


				1 3/8"	1	1	3 1/2"	2 3/8"	1 7/8"	4	5/16"	No	Set Screws	UL 2703	4698T2	00000
				1 5/8"	1 1/4	1	4 1/8"	3"	2 1/8"	4	7/16"	No	Set Screws	UL 2703	4698T3	00000
				1 7/8"	1 1/2	1	4 3/8"	3 1/8"	2 1/2"	4	7/16"	No	Set Screws	UL 2703	4698T4	00000
				1 7/8"	1 1/2	1	5"	5"	3"	4	7/16"	No	Set Screws	—	4698T303	00000
				1 7/8"	1 1/2	1	6"	4"	3 1/2"	4	7/16"	No	Set Screws	—	4698T304	00000
				2 3/8"	2	1	5"	3 3/4"	2 7/8"	4	7/16"	No	Set Screws	UL 2703	4698T185	00000
				2 3/8"	2	1	8"	5"	3 1/2"	4	9/16"	No	Set Screws	—	4698T305	00000




						Anodized Aluminum

						1 5/8"	1 1/4	1	4 1/16"	2 15/16"	2 1/8"	4	7/16"	No	Set Screws	UL 2703	4698T333	00000


						1 7/8"	1 1/2	1	4 5/16"	3 1/8"	2 1/2"	4	7/16"	No	Set Screws	UL 2703	4698T334	00000




								Black Powder-Coated Aluminum

								1 5/8"	1 1/4	1	4 1/16"	2 15/16"	2 1/8"	4	7/16"	No	Set Screws	UL 2703	4698T368	00000


								1 7/8"	1 1/2	1	4 5/16"	3 1/8"	2 1/2"	4	7/16"	No	Set Screws	UL 2703	4698T369	00000


								55° Flush







												Aluminum

												1"	3/4	1	3 1/2"	1 7/8"	2"	4	5/16"	No	Set Screws	—	4698T397	00000


												1 3/8"	1	1	3 1/2"	2 3/8"	2 3/8"	4	5/16"	No	Set Screws	—	4698T398	00000
												1 5/8"	1 1/4	1	4 1/16"	2 15/16"	2 7/8"	4	5/16"	No	Set Screws	—	4698T399	00000


												Offset







														Aluminum

														1 5/8"	1 1/4	1	4"	2"	3 3/4"	2	3/8"	No	Set Screws	—	4698T395	00000


		1 5/8"	1 1/4											1	5 1/2"	4"	2 13/16"	4	7/16"	No	Set Screws	—	4698T165	00000
		1 7/8"	1 1/2											1	4 1/4"	2"	3 15/16"	2	3/8"	No	Set Screws	—	4698T396	00000
		1 7/8"	1 1/2											1	5 1/2"	4 1/2"	2 3/4"	4	7/16"	No	Set Screws	—	4698T166	00000
		2 3/8"	2											1	6"	5"	3 3/8"	4	7/16"	No	Set Screws	—	4698T225	00000




														Anodized Aluminum

														1 5/8"	1 1/4	1	5 1/2"	4"	2 7/8"	4	7/16"	No	Set Screws	—	4698T337	00000


														1 7/8"	1 1/2	1	5 1/2"	4 1/2"	2 7/8"	4	7/16"	No	Set Screws	—	4698T338	00000




														Black Powder-Coated Aluminum

														1 5/8"	1 1/4	1	5 1/2"	4"	2 7/8"	4	7/16"	No	Set Screws	—	4698T373	00000


														1 7/8"	1 1/2	1	5 1/2"	4 1/2"	2 7/8"	4	7/16"	No	Set Screws	—	4698T374	00000


						Adjustable Angle Offset







																Aluminum

								1 5/8"								1 1/4	1	4 1/4"	2"	4 5/16"	2	7/16"	No	Set Screws	—	4698T311	00000


								1 7/8"	1 1/2							1	4 1/4"	2"	4 15/16"	2	7/16"	No	Set Screws	—	4698T312	00000

Galvanized Iron and Steel Slip-On Framing and Fittings

To provide corrosion resistance in wet environments, this framing is galvanized. Slip the fittings over rails to construct custom railings, guard rails, storage racks, and shelving. Tighten the included set screws for a secure hold.

Rail Mounts


Rectangular Adjustable Angle	L-Shape	Oval	Round	Flush	Offset

Rail mounts attach to rails on one end and have a flange on the other end to attach to floors, walls, and ceilings.

Galvanized Iron—Galvanized iron fittings are malleable iron.

			Flange					Mounting Holes
	For Rail OD	For Pipe Size	Lg.	Wd.	Dia.	Overall Ht.	Material	No. of	Dia.	Mounting Fasteners Included	Includes		Each
Rectangular Adjustable Angle



		1"	3/4	4 3/8"	2"	—	3 3/4"	Galvanized Iron	—	—	—	Set Screws	4936T188	000000


		1 3/8"	1	4 3/8"	2"	—	3 3/4"	Galvanized Iron	—	—	—	Set Screws	4936T64	00000
		1 5/8"	1 1/4	4 3/8"	2"	—	4 1/8"	Galvanized Iron	—	—	—	Set Screws	4936T65	00000
		1 7/8"	1 1/2	4 3/8"	2"	—	4 3/8"	Galvanized Iron	—	—	—	Set Screws	4936T66	00000
		2 3/8"	2	4 3/8"	2"	—	4 5/8"	Galvanized Iron	—	—	—	Set Screws	4936T121	00000


		L-Shape



				1 3/8"	1	5 1/8"	3"	—	3 1/16"	Galvanized Iron	4	7/16"	No	Set Screws	4936T248	00000


				1 5/8"	1 1/4	5 3/4"	3 1/8"	—	3 9/16"	Galvanized Iron	4	7/16"	No	Set Screws	4936T232	00000
				1 7/8"	1 1/2	6 3/8"	3 5/8"	—	3 9/16"	Galvanized Iron	4	7/16"	No	Set Screws	4936T233	00000


				Oval



						1"	3/4	4 9/16"	2 1/2"	—	3 1/8"	Galvanized Iron	2	7/16"	No	Set Screws	4936T187	00000


						1 3/8"	1	5 1/16"	3"	—	3 1/2"	Galvanized Iron	2	9/16"	No	Set Screws	4936T71	00000
						1 5/8"	1 1/4	5 1/2"	3"	—	3 1/2"	Galvanized Iron	2	9/16"	No	Set Screws	4936T72	00000
						1 7/8"	1 1/2	6 1/8"	3 3/8"	—	3 1/2"	Galvanized Iron	2	9/16"	No	Set Screws	4936T73	00000
						2 3/8"	2	6 1/2"	4"	—	5"	Galvanized Iron	2	11/16"	No	Set Screws	4936T123	00000


						Round



								1"	3/4	—	—	3 1/8"	1 9/16"	Galvanized Iron	4	1/4"	No	Set Screws	4936T186	00000


								1"	3/4	—	—	5 1/8"	2 1/2"	Galvanized Iron	4	5/16"	No	Set Screws	4936T228	00000
								1 3/8"	1	—	—	3 9/16"	1 15/16"	Galvanized Iron	4	1/4"	No	Set Screws	4936T67	00000
								1 3/8"	1	—	—	5 1/2"	2 1/2"	Galvanized Iron	4	5/16"	No	Set Screws	4936T416	00000
								1 5/8"	1 1/4	—	—	4"	2"	Galvanized Iron	4	1/4"	No	Set Screws	4936T68	00000
								1 5/8"	1 1/4	—	—	5 7/8"	2 1/2"	Galvanized Iron	4	5/16"	No	Set Screws	4936T418	00000
								1 7/8"	1 1/2	—	—	4 1/2"	2 5/16"	Galvanized Iron	4	1/4"	No	Set Screws	4936T69	00000
								1 7/8"	1 1/2	—	—	6 1/8"	2 1/2"	Galvanized Iron	4	5/16"	No	Set Screws	4936T419	00000
								2 3/8"	2	—	—	5"	2 1/2"	Galvanized Iron	4	3/8"	No	Set Screws	4936T122	00000


								Flush



										1 3/8"	1	3 3/4"	4 1/8"	—	2"	Galvanized Iron	3	7/16"	No	Set Screws	4936T601	00000


										1 5/8"	1 1/4	4 1/4"	4 1/4"	—	2 1/4"	Galvanized Iron	3	7/16"	No	Set Screws	4936T701	00000
										1 7/8"	1 1/2	4 3/8"	4 5/8"	—	2 1/2"	Galvanized Iron	3	7/16"	No	Set Screws	4936T801	00000


Offset



										1 3/8"	1	3 3/4"	1 3/4"	—	5 5/16"	Galvanized Iron	2	9/16"	No	Set Screws	4936T91	00000


										1 5/8"	1 1/4	4 1/4"	2"	—	5 7/16"	Galvanized Iron	2	9/16"	No	Set Screws	4936T92	00000
										1 7/8"	1 1/2	4 3/4"	2 1/4"	—	5 3/4"	Galvanized Iron	2	9/16"	No	Set Screws	4936T93	00000

Through-Hole Rail Mounts

Image of ProductInUse. Front orientation. Slip-On Framing and Fittings. Galvanized Iron and Steel Slip-On Framing and Fittings, Through-Hole Rail Mounts.

Through-hole fittings allow rails to run all the way through.

Through-hole rail mounts secure long runs of railing.

Galvanized Iron—Galvanized iron fittings are malleable iron.

			Flange				Mounting Holes
	For Rail OD	For Pipe Size	Lg.	Wd.	Overall Ht.	Material	No. of	Dia.	Mounting Fasteners Included	Includes		Each
Offset



		1"	3/4	3"	1 7/8"	2 7/8"	Galvanized Iron	2	5/16"	No	Set Screws	4936T194	000000


		1 3/8"	1	3 7/16"	1 5/8"	3 1/4"	Galvanized Iron	2	5/16"	No	Set Screws	4936T131	00000
		1 5/8"	1 1/4	4"	1 3/4"	3 5/8"	Galvanized Iron	2	5/16"	No	Set Screws	4936T132	00000
		1 7/8"	1 1/2	4 1/4"	1 7/8"	4"	Galvanized Iron	2	5/16"	No	Set Screws	4936T133	00000

Large-Diameter Sign-Mounting Brackets

Mount a sign to 4" to 12" diameter post or column. Fasten the brackets to your sign and tighten the band to a pole to lock in place. Use brackets in pairs.

							Pkg.
For Post Dia.	Material	Strap Material	Wt. Cap.	Mounting Fasteners Included	Pkg. Qty.		1-5	6-Up
4" to 12"	Galvanized Steel	Stainless Steel	Not Rated	Yes	2	1307T21	000000	000000

Sign-Mounting Brackets

Mount a sign to a 1 _1/8” to 1 _3/4" diameter post. Fasten these brackets to your sign and use the included set screws to secure them to a pole without drilling holes. Use brackets in pairs.

For Post Dia.	Material	Wt. Cap., lb.	Mounting Fasteners Included	Pkg. Qty.		Pkg.
1 1/8" to 1 3/4"	Aluminum	8	Yes	2	5735T79	000000

Wall-Mount Flag Brackets


45° Angle	Adjustable Angle

Flagpole Angle	For Flagpole Bottom Dia.	Material	Appearance	For Use Outdoors	Mounting Fasteners Included	No. of Mounting Holes	Mounting Hole Dia.		Each
45°	1"	Aluminum	Dull	Yes	No	3	3/16"	7534T15	000000
Adjustable	1"	Aluminum	Dull	Yes	Yes	4	3/16"	7534T16	00000