Riser Clamps | McMaster-Carr

	For Pipe Size For Pipe Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12

	For Rigid Conduit Trade Size For Rigid Conduit Trade Size

	Material Material

Stainless Steel

Steel

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	Thickness Thickness

	Length Length

	Height Height

7/8"

1 1/4"

1 1/2"

	Specifications Met Specifications Met

Fed. Spec.

MSS

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	For Number of Lines For Number of Lines

	Capacity Capacity

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Finish Finish

Zinc Plated

	For IMC Conduit Trade Size For IMC Conduit Trade Size

	For EMT Conduit Trade Size For EMT Conduit Trade Size

1/2

2 1/2

3 1/2

	For Copper Tube Size For Copper Tube Size

5/8

1 1/2

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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30 Products

Selecting Clamps Using Pipe, Conduit, or Tubing Trade Size

Wide flanges support vertical pipe passing through floors.

Zinc-plated steel clamps have good corrosion resistance. 304 stainless steel clamps have excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

ID
Inch	Metric, mm	For Pipe Size	Capacity, lbs.	Lg.	Ht.	Thick.	Clamping Fasteners Included	Specifications Met		Each
Zinc-Plated Steel
13/16"	21	1/2	250	8 1/2"	7/8"	1/16"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
1 1/16"	27	3/4	250	9"	7/8"	1/16"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	0000
1 5/16"	33	1	250	9"	7/8"	1/16"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	0000
1 11/16"	43	1 1/4	250	9 1/2"	7/8"	1/16"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	0000
1 7/8"	48	1 1/2	250	9 7/8"	7/8"	1/16"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	0000
2 3/8"	60	2	250	10 1/4"	1"	3/32"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	0000
2 7/8"	73	2 1/2	390	11"	1"	3/32"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	0000
3 1/2"	89	3	530	11 3/4"	1"	3/32"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
4"	102	3 1/2	670	12 5/8"	1 1/4"	1/8"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
4 1/2"	114	4	810	13"	1 1/4"	1/8"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
5 9/16"	141	5	1,160	14 1/2"	1 1/2"	5/32"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
6 5/8"	168	6	1,570	16"	1 1/2"	5/32"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
8 5/8"	219	8	2,500	18 1/4"	2"	3/8"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
10 3/4"	273	10	2,500	20 5/8"	2"	3/8"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
12 3/4"	324	12	2,700	22 3/8"	2"	3/8"	Yes	Fed. Spec. WW-H-171, Type 8; MSS-SP-58-2009, Type 8	0000000	00000
304 Stainless Steel
13/16"	21	1/2	220	8 7/8"	1 1/4"	3/16"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
1 1/16"	27	3/4	220	8 7/8"	1 1/4"	3/16"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
1 5/16"	33	1	220	8 7/8"	1 1/4"	3/16"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
1 11/16"	43	1 1/4	250	10"	1 1/4"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
1 7/8"	48	1 1/2	250	10 1/4"	1 1/4"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
2 3/8"	60	2	300	10 1/4"	1 1/4"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
2 7/8"	73	2 1/2	400	11 1/4"	1 1/4"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
3 1/2"	89	3	500	11 3/8"	1 1/4"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
4"	102	3 1/2	600	12 7/8"	1 1/2"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
4 1/2"	114	4	750	12 7/8"	1 1/2"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
5 9/16"	141	5	1,160	13 3/4"	2"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
6 5/8"	168	6	1,570	14 3/4"	2"	1/4"	Yes	MSS-SP-58-2009, Type 8	0000000	00000
8 5/8"	219	8	2,500	18 1/2"	2"	3/8"	Yes	MSS-SP-58-2009, Type 8	0000000	000000
10 3/4"	273	10	2,500	20 1/4"	2"	3/8"	Yes	MSS-SP-58-2009, Type 8	0000000	000000
12 3/4"	324	12	2,700	22 3/4"	2"	1/2"	Yes	MSS-SP-58-2009, Type 8	0000000	000000