Metric Corners | McMaster-Carr

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About Aluminum

About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron

Yield Strength: 16,000 psi
Hardness: Brinell 60 (Soft)
Temper: T5
Fabrication: Extruded
Specifications Met: ASTM B221

The anodized coating on these 90° angles forms a bond with the aluminum surface to improve wear and corrosion resistance. Often called decorative anodize, it provides a uniform finish that readily accepts paint and adhesive. More corrosion resistant and easier to form than multipurpose 6061 aluminum, 6063 is primarily used for exterior railings, decorative trim, and door frames.

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

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

With Square Inside Corner and Leg Edge

Outside				Inside
Ht.	Ht. Tolerance	Wd.	Wd. Tolerance	Ht.	Wd.	Heat Treatment	Finish Color	Temp. Range, °F	Straightness Tolerance		Each
2 ft. Length
1mm Wall Thick. (-0.178mm to 0.178mm Tolerance)
10mm	-0.152mm to 0.152mm	10mm	-0.152mm to 0.152mm	9.00mm	9.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
15mm	-0.177mm to 0.177mm	15mm	-0.177mm to 0.177mm	9.00mm	14.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	0000
20mm	-0.177mm to 0.177mm	20mm	-0.177mm to 0.177mm	19.00mm	19.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	0000
20mm	-0.177mm to 0.177mm	40mm	-0.177mm to 0.177mm	19.00mm	39.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
2mm Wall Thick. (-0.178mm to 0.178mm Tolerance)
15mm	-0.203mm to 0.203mm	15mm	-0.203mm to 0.203mm	13.00mm	13.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
15mm	-0.203mm to 0.203mm	30mm	-0.203mm to 0.203mm	13.00mm	13.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
20mm	-0.203mm to 0.203mm	20mm	-0.203mm to 0.203mm	18.00mm	18.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
25mm	-0.203mm to 0.203mm	50mm	-0.203mm to 0.203mm	23.00mm	48.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
50mm	-0.203mm to 0.203mm	50mm	-0.203mm to 0.203mm	48.00mm	48.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
3mm Wall Thick. (-0.178mm to 0.178mm Tolerance)
30mm	-0.228mm to 0.228mm	30mm	-0.228mm to 0.228mm	27.00mm	27.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
50mm	-0.228mm to 0.228mm	50mm	-0.228mm to 0.228mm	47.00mm	47.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
6 ft. Length
1mm Wall Thick. (-0.178mm to 0.178mm Tolerance)
5mm	-0.177mm to 0.177mm	5mm	-0.177mm to 0.177mm	4.00mm	4.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
10mm	-0.177mm to 0.177mm	10mm	-0.177mm to 0.177mm	9.00mm	9.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
15mm	-0.177mm to 0.177mm	15mm	-0.177mm to 0.177mm	14.00mm	14.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
2mm Wall Thick. (-0.178mm to 0.178mm Tolerance)
10mm	-0.203mm to 0.203mm	20mm	-0.203mm to 0.203mm	8.00mm	18.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
15mm	-0.203mm to 0.203mm	15mm	-0.203mm to 0.203mm	13.00mm	13.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
20mm	-0.203mm to 0.203mm	40mm	-0.203mm to 0.203mm	18.00mm	38.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
3mm Wall Thick. (-0.178mm to 0.178mm Tolerance)
25mm	-0.228mm to 0.228mm	50mm	-0.228mm to 0.228mm	22.00mm	47.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000
30mm	-0.228mm to 0.228mm	30mm	-0.228mm to 0.228mm	27.00mm	27.00mm	Hardened	Clear	-320° to 212°	0.050" per ft.	00000000	00000

Easy-to-Form 6060 Aluminum

Yield Strength: 21,000 psi
Hardness: Brinell 65 (Soft)
Temper: T66
Fabrication: Extruded

Easier to bend and shape than 6061 aluminum, this aluminum is good for framing, cross sections, and structures in construction and marine industries. It’s corrosion resistant as well as easy to machine and weld. It can also be anodized to create a durable, decorative finish.

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

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Outside				Inside
Height, mm	Height Tolerance Range, mm	Width, mm	Width Tolerance Range, mm	Height, mm	Width, mm	Heat Treatment	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
15	-0.3 to 0.3	10	-0.25 to 0.25	13	8	Hardened	0.018" per ft.	0000000	00000	000000	000000
20	-0.3 to 0.3	20	-0.3 to 0.3	18	18	Hardened	0.018" per ft.	0000000	0000	00000	00000
25	-0.5 to 0.5	25	-0.3 to 0.3	22	22	Hardened	0.018" per ft.	0000000	00000	00000	00000
30	-0.5 to 0.5	15	-0.3 to 0.3	28	13	Hardened	0.018" per ft.	0000000	0000	00000	00000
30	-0.5 to 0.5	30	-0.5 to 0.5	25	25	Hardened	0.018" per ft.	0000000	00000	00000	00000
30	-0.5 to 0.5	30	-0.5 to 0.5	26	26	Hardened	0.018" per ft.	0000000	00000	00000	00000
30	-0.5 to 0.5	30	-0.5 to 0.5	27	27	Hardened	0.018" per ft.	0000000	00000	00000	00000
40	-0.5 to 0.5	40	-0.5 to 0.5	35	35	Hardened	0.018" per ft.	0000000	00000	00000	000000
50	-0.5 to 0.5	50	-0.5 to 0.5	44	44	Hardened	0.018" per ft.	0000000	00000	00000	000000

Low-Carbon Steel 90° Angles

Yield Strength: 36,000 psi
Hardness: Not Rated (Medium)
Heat Treatable: See Table
Max. Hardness After Heat Treatment: Not Rated
Specifications Met: See Table

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. Some of these angles can be surface hardened with heat treating.

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

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Outside		Inside
Ht.	Wd.	Ht.	Wd.	Heat Treatable	Specifications Met	Outside Corner Shape		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
3mm Wall Thick.
30mm	30mm	27mm	27mm	No	EN 10025-2	Round	0000000	000000	000000	0000000
4mm Wall Thick.
40mm	40mm	36mm	36mm	No	EN 10025-2	Round	0000000	00000	00000	000000
5mm Wall Thick.
50mm	50mm	45mm	45mm	No	EN 10025-2	Round	0000000	00000	000000	000000
6mm Wall Thick.
40mm	40mm	34mm	34mm	No	EN 10025-2	Round	0000000	00000	000000	000000
70mm	70mm	64mm	64mm	No	EN 10025-2	Round	0000000	00000	000000	000000

Low-Carbon Steel Rectangular Tubes

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. This material can be surface hardened with heat treating.

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

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Metric Tubes

Yield Strength: 34,000 psi
Hardness: Rockwell B65 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated

Outside, mm				Inside, mm
Ht.	Ht. Tolerance	Wd.	Wd. Tolerance	Ht.	Wd.		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 mm Wall Thick. (-0.15 to 0.15 mm Tolerance)
12	-0.2 to 0.2	12	-0.2 to 0.2	10	10	0000000	00000	000000	000000
2 mm Wall Thick. (-0.1 to 0.1 mm Tolerance)
25	-0.3 to 0.3	50	-0.3 to 0.3	21	46	0000000	00000	00000	000000
25	-0.25 to 0.25	25	-0.25 to 0.25	21	21	0000000	00000	00000	00000
40	-0.3 to 0.3	40	-0.3 to 0.3	36	36	0000000	00000	00000	000000
55	-0.35 to 0.35	55	-0.35 to 0.35	51	51	0000000	00000	00000	000000
3 mm Wall Thick. (-0.1 to 0.1 mm Tolerance)
100	-0.65 to 0.65	100	-0.65 to 0.65	94	94	0000000	00000	000000	000000

Corner Machine Brackets

With Two Mounting Slots

With Four Mounting Slots

Made to meet tight dimensional tolerances for mounting applications on machines and automated equipment.

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

Lg.										Mounting
(A)	(B)	(C)	Lg. Tolerance	Thick.	Thick. Tolerance	Angle	Angle Tolerance	Corner Radius	Flatness Tolerance	Fasteners Included	Number of Slots	For Screw Size		Each
Metric
6061 Aluminum
35mm	30mm	30mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	2	M6	0000000	00000
50mm	50mm	40mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	2	M10	0000000	0000
75mm	50mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	2	M12	0000000	00000
75mm	60mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	4	M10	0000000	00000
80mm	40mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	4	M6	0000000	00000
100mm	60mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	4	M12	0000000	00000
316 Stainless Steel
35mm	30mm	30mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	2	M6	0000000	0000
50mm	50mm	40mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	2	M10	0000000	0000
75mm	50mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	2	M12	0000000	00000
75mm	60mm	75mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	4	M10	0000000	00000
80mm	40mm	60mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	4	M6	0000000	00000
100mm	60mm	75mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	No	4	M12	0000000	00000

Finish-Your-Own Corner Machine Brackets

Machine holes and slots or weld in place. These brackets are made to meet tight dimensional tolerances for mounting applications on machines and automated equipment.

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

Lg.
(A)	(B)	(C)	Lg. Tolerance	Thick.	Thick. Tolerance	Angle	Angle Tolerance	Corner Radius	Flatness Tolerance		Each
Metric
6061 Aluminum
35mm	30mm	30mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
50mm	50mm	40mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	0000
75mm	50mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
75mm	60mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
80mm	40mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
100mm	60mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
316 Stainless Steel
35mm	30mm	30mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	0000
50mm	50mm	40mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	0000
75mm	50mm	50mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
75mm	60mm	75mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000
80mm	40mm	60mm	-0.5mm to 0.5mm	3mm	-0.2mm to 0.2mm	90°	-1° to 1°	3.2mm	-0.38mm to 0.38mm	0000000	00000

Sensor and Switch Mounting Brackets

Position proximity, photoelectric, and light beam sensors and switches.

Styles 1 and 2 have a sensor/switch slot for mounting adjustments.

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

			Lg., mm					Mounting
Style	For Sensor/Switch OD, mm	Material	(A)	(B)	(C)	Thick., mm	Sensor/Switch Slot Adjustment Lg., mm	Fasteners Included	Number of Slots	Number of Holes	For Screw Size		Each
1	8	Zinc-Plated Steel	32	32	25	1.8	8	No	2	__	M5	00000000	000000
1	8	303 Stainless Steel	32	32	25	1.8	8	No	2	__	M5	00000000	00000
1	12	Zinc-Plated Steel	38	35	38	1.8	13	No	2	__	M5	00000000	0000
1	12	303 Stainless Steel	38	35	38	1.8	13	No	2	__	M5	00000000	00000
1	16	304 Stainless Steel	38	35	38	1.8	16	No	2	__	M5	000000000	00000
1	18	Zinc-Plated Steel	45	35	51	1.8	16	No	2	__	M5	00000000	00000
1	18	303 Stainless Steel	45	35	51	1.8	16	No	2	__	M5	00000000	00000
1	22	304 Stainless Steel	45	35	51	1.8	17	No	2	__	M5	000000000	00000
1	24	304 Stainless Steel	45	35	51	1.8	23	No	2	__	M5	000000000	00000
1	30	Zinc-Plated Steel	57	45	64	2.2	19	No	2	__	M7	00000000	00000
1	30	303 Stainless Steel	57	45	64	2.2	19	No	2	__	M7	00000000	00000
1	36	304 Stainless Steel	57	45	64	2.2	32	No	2	__	M7	000000000	00000
1	47	304 Stainless Steel	64	51	89	3.1	38	No	2	__	M7	000000000	00000
3	12	Zinc-Plated Steel	30	30	27	1.5	__	No	3	__	M3	00000000	00000
3	18	Zinc-Plated Steel	42	37	37	1.5	__	No	3	__	M4	00000000	00000
3	30	Zinc-Plated Steel	60	43	54	2.5	__	No	3	__	M5	00000000	00000
5	12	304 Stainless Steel	32	25	29	3	__	No	__	2	M5	000000000	00000
5	16	304 Stainless Steel	32	25	29	3	__	No	__	2	M5	000000000	00000
5	18	304 Stainless Steel	38	25	39	3	__	No	__	2	M6	000000000	00000
5	22	304 Stainless Steel	38	25	39	3	__	No	__	2	M6	000000000	00000
5	24	304 Stainless Steel	38	25	39	3	__	No	__	2	M6	000000000	00000
5	30	304 Stainless Steel	51	38	54	3	__	No	__	2	M7	000000000	00000
5	36	304 Stainless Steel	51	38	54	3	__	No	__	2	M7	000000000	00000
5	47	304 Stainless Steel	64	38	70	3	__	No	__	2	M10	000000000	00000

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About Aluminum

About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron

Anodized Architectural 6063 Aluminum 90° Angles

Easy-to-Form 6060 Aluminum

Low-Carbon Steel 90° Angles

Low-Carbon Steel Rectangular Tubes

Corner Machine Brackets

Finish-Your-Own Corner Machine Brackets

Sensor and Switch Mounting Brackets