Countersunk Spacers | McMaster-Carr

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197 Products

Finishing Washers

Flat and oval head screws sit flush within these washers for a neat, finished appearance.

Flanged Finishing Washers

18-8 Stainless Steel—18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

Nickel-Plated Brass—Black-zinc- and nickel-plated brass washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. They have a decorative finish.

	ID	OD	Overall Ht.	Countersink Angle	Pkg. Qty.		Pkg.
18-8 Stainless Steel



	No. 6	0.180"	0.500"	0.110"	82°	100	000000000	00000


	No. 8	0.210"	0.609"	0.125"	82°	100	000000000	0000
	No. 10	0.250"	0.703"	0.125"	82°	100	000000000	0000


	Nickel-Plated Brass



			No. 8	0.203"	0.625"	0.112"	82°	100	000000000	00000


			No. 10	0.250"	0.688"	0.119"	82°	100	000000000	00000

Rounded Face Finishing Washers

Nylon—Nylon washers are good electrical insulators. Exposure to moisture may cause these nylon washers to expand.

	ID, mm	OD, mm	Overall Ht., mm	Countersink Angle	Temp. Range, ° F	Choose a Color	Pkg. Qty.		Pkg.
Nylon



	M3	3.2	14	2.9	90°	-40 to 180	Black , White	25	000000000	00000


	M4	4.3	16	3.7	90°	-40 to 180	Black , White	25	000000000	0000
	M5	5.2	18	3.8	90°	-40 to 180	Black , White	10	000000000	0000
	M6	6.4	22	4.5	90°	-40 to 180	Black , White	10	000000000	0000

Other Finishing Washers

Image of Product. Front orientation. Finishing Washers.

18-8 Stainless Steel—18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

316 Stainless Steel—316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.

Nickel-Plated Steel—Nickel-plated steel washers have excellent corrosion resistance and a decorative finish.

Brass—Brass washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Black-Zinc-Plated Brass and Nickel-Plated Brass—Black-zinc- and nickel-plated brass washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. They have a decorative finish.

Zinc-Plated Steel and Chrome-Plated Steel—Zinc- and chrome-plated steel washers are corrosion resistant in wet environments.

Aluminum—Aluminum washers are lightweight and corrosion resistant in wet environments.

Nylon—Nylon washers are good electrical insulators. Exposure to moisture may cause these nylon washers to expand.

	For Screw Size	ID	OD	Overall Ht.	Countersink Angle	Temp. Range, ° F	Choose a Color	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		No. 4	0.150"	0.375"	0.110"	82°	—	—	100	000000000	00000


		No. 6	0.180"	0.438"	0.110"	82°	—	—	100	000000000	0000
		No. 8	0.210"	0.531"	0.130"	82°	—	—	100	000000000	0000
		No. 10	0.250"	0.594"	0.130"	82°	—	—	100	000000000	0000
		No. 12	0.280"	0.688"	0.160"	82°	—	—	100	000000000	0000
		1/4"	0.320"	0.781"	0.180"	82°	—	—	100	000000000	0000
		5/16"	0.380"	0.891"	0.180"	82°	—	—	50	000000000	0000
		3/8"	0.445"	1.125"	0.250"	82°	—	—	50	000000000	0000
		M2.5	2.7 mm	9.0 mm	1.6 mm	90°	—	—	10	000000000	00000
		M3	3.2 mm	10.0 mm	1.8 mm	90°	—	—	10	000000000	0000
		M4	4.3 mm	14.0 mm	2.3 mm	90°	—	—	10	000000000	0000


		M5	5.3 mm	16.0 mm	2.8 mm	90°	—	—	5	000000000	0000
		M6	6.4 mm	18.0 mm	3.3 mm	90°	—	—	5	000000000	0000
		M8	8.4 mm	25.0 mm	4.8 mm	90°	—	—	1	000000000	0000
		M10	10.5 mm	30.0 mm	6.5 mm	90°	—	—	1	000000000	0000


		316 Stainless Steel



				No. 4	0.140"	0.390"	0.110"	82°	—	—	50	000000000	0000


				No. 6	0.180"	0.438"	0.110"	82°	—	—	50	000000000	0000
				No. 8	0.210"	0.531"	0.130"	82°	—	—	50	000000000	0000
				No. 10	0.250"	0.593"	0.130"	82°	—	—	50	000000000	0000
				No. 12	0.280"	0.688"	0.160"	82°	—	—	25	000000000	0000
				1/4"	0.320"	0.781"	0.180"	82°	—	—	25	000000000	0000


				Nickel-Plated Steel



						No. 4	0.125"	0.375"	0.103"	82°	—	—	100	000000000	0000


						No. 6	0.160"	0.469"	0.102"	82°	—	—	100	000000000	0000
						No. 8	0.180"	0.531"	0.120"	82°	—	—	100	000000000	0000
						No. 10	0.235"	0.594"	0.122"	82°	—	—	100	000000000	0000
						No. 12	0.259"	0.656"	0.156"	82°	—	—	100	000000000	0000
						1/4"	0.305"	0.781"	0.160"	82°	—	—	100	000000000	00000
						5/16"	0.391"	0.906"	0.188"	82°	—	—	50	000000000	00000
						3/8"	0.500"	1.000"	0.260"	82°	—	—	25	000000000	0000
						M3	3.2 mm	10.0 mm	1.8 mm	90°	—	—	5	000000000	0000
						M5	5.3 mm	16.0 mm	2.8 mm	90°	—	—	5	000000000	00000
						M6	6.4 mm	18.0 mm	3.3 mm	90°	—	—	5	000000000	00000


						M8	8.4 mm	25.0 mm	4.8 mm	90°	—	—	5	000000000	00000


						Brass



No. 4								0.140"	0.375"	0.110"	82°	—	—	100	000000000	0000


No. 6	0.180"							0.438"	0.110"	82°	—	—	100	000000000	0000
No. 8	0.210"							0.531"	0.130"	82°	—	—	100	000000000	0000
No. 10	0.250"							0.594"	0.130"	82°	—	—	100	000000000	0000
No. 12	0.280"							0.688"	0.160"	82°	—	—	100	000000000	00000
1/4"	0.320"							0.781"	0.180"	82°	—	—	100	000000000	00000
3/8"	0.470"							1.125"	0.290"	82°	—	—	10	000000000	0000


Black-Zinc-Plated Brass



								No. 6	0.172"	0.438"	0.102"	82°	—	—	100	000000000	00000


								No. 8	0.203"	0.500"	0.112"	82°	—	—	100	000000000	00000
								No. 10	0.250"	0.594"	0.122"	82°	—	—	100	000000000	00000


								Nickel-Plated Brass



		No. 4								0.140"	0.375"	0.110"	82°	—	—	100	000000000	0000


		No. 6	0.180"							0.438"	0.110"	82°	—	—	100	000000000	0000
		No. 8	0.210"							0.531"	0.130"	82°	—	—	100	000000000	0000
		No. 10	0.250"							0.594"	0.130"	82°	—	—	100	000000000	00000
		No. 12	0.280"							0.688"	0.160"	82°	—	—	50	000000000	0000
		1/4"	0.320"							0.781"	0.180"	82°	—	—	50	000000000	00000
		5/16"	0.380"							0.891"	0.180"	82°	—	—	25	000000000	00000
		3/8"	0.470"							1.125"	0.290"	82°	—	—	10	000000000	00000
		M3	4.1 mm							9.0 mm	1.8 mm	90°	—	—	25	000000000	0000
		M4	6.0 mm							13.0 mm	2.3 mm	90°	—	—	25	000000000	00000
		M5	7.0 mm							15.0 mm	2.5 mm	90°	—	—	10	000000000	0000


		M6	8.0 mm	16.0 mm	3.2 mm					90°	—	—	10	000000000	0000


		Zinc-Plated Steel



				M2.5	2.7 mm					9.0 mm	1.6 mm	90°	—	—	25	000000000	00000


				M3	3.2 mm					10.0 mm	1.8 mm	90°	—	—	25	000000000	0000
				M4	4.3 mm					14.0 mm	2.3 mm	90°	—	—	25	000000000	00000
				M5	5.3 mm					16.0 mm	2.8 mm	90°	—	—	25	000000000	00000
				M6	6.4 mm					18.0 mm	3.3 mm	90°	—	—	10	000000000	0000
				M8	8.4 mm					25.0 mm	4.8 mm	90°	—	—	5	000000000	0000
				M10	10.5 mm					30.0 mm	6.5 mm	90°	—	—	1	000000000	0000


				Chrome-Plated Steel



										M2.5	2.7 mm	9.0 mm	1.6 mm	90°	—	—	1	000000000	0000


						M3	3.2 mm			10.0 mm	1.8 mm	90°	—	—	1	000000000	0000
						M4	4.3 mm			14.0 mm	2.3 mm	90°	—	—	1	000000000	0000
						M5	5.3 mm			16.0 mm	2.8 mm	90°	—	—	1	000000000	0000
						M6	6.4 mm			18.0 mm	3.3 mm	90°	—	—	1	000000000	0000
						M8	8.4 mm			25.0 mm	4.8 mm	90°	—	—	1	000000000	0000


						Aluminum



M3	3.2 mm									10.0 mm	1.8 mm	90°	—	—	10	000000000	0000


M4	4.3 mm									14.0 mm	2.3 mm	90°	—	—	10	000000000	00000
M5	5.3 mm									16.0 mm	2.8 mm	90°	—	—	10	000000000	00000
M6	6.4 mm									18.0 mm	3.3 mm	90°	—	—	10	000000000	00000
M8	8.4 mm									25.0 mm	4.8 mm	90°	—	—	5	000000000	00000


Nylon



										No. 6	0.143"	0.438"	0.1"	82°	-40 to 180	Black , Off-White	100	000000000	00000


								No. 8	0.171"	0.51"	0.115"	82°	-40 to 180	Black , Off-White	100	000000000	00000
								No. 10	0.196"	0.575"	0.152"	82°	-40 to 180	Black , Off-White	100	000000000	00000
								No. 12	0.225"	0.609"	0.16"	82°	-40 to 180	Black , Off-White	100	000000000	00000
								1/4"	0.26"	0.683"	0.18"	82°	-40 to 180	Black , Off-White	100	000000000	00000
								M3	3 mm	9.2 mm	1.9 mm	90°	-40 to 180	Black , Off-White	25	000000000	0000
								M4	4.3 mm	11.9 mm	3 mm	90°	-40 to 180	Black , Off-White	25	000000000	0000
								M5	5.3 mm	15.3 mm	3.5 mm	90°	-40 to 180	Black , Off-White	25	000000000	0000
								M6	6.3 mm	17 mm	4.5 mm	90°	-40 to 180	Black , Off-White	10	000000000	0000
								M8	8 mm	22.3 mm	5.9 mm	90°	-40 to 180	Black , Off-White	10	000000000	0000

Heavy Duty Finishing Washers

Also known as dress washers, these are machined to be sturdier and provide a neater appearance than standard finishing washers. Flat and oval head screws sit flush within them.

18-8 Stainless Steel—18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

316 Stainless Steel—316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.

Black-Oxide Steel—Black-oxide steel washers are mildly corrosion resistant in dry environments.

	For Screw Size	ID	OD	Thk.	Countersink Angle	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		No. 4	0.125"	0.438"	0.084" to 0.104"	82°	1	000000000	00000


		No. 4	0.125"	0.438"	0.084" to 0.104"	100°	1	000000000	0000
		No. 5	0.140"	0.500"	0.084" to 0.104"	100°	1	000000000	0000
		No. 5	0.140"	0.500"	0.094" to 0.114"	82°	1	000000000	0000
		No. 6	0.156"	0.562"	0.084" to 0.104"	100°	1	000000000	0000
		No. 6	0.156"	0.562"	0.097" to 0.117"	82°	1	000000000	0000
		No. 8	0.188"	0.750"	0.115" to 0.135"	82°	1	000000000	0000
		No. 8	0.188"	0.750"	0.115" to 0.135"	100°	1	000000000	0000
		No. 10	0.203"	0.812"	0.130" to 0.151"	82°	1	000000000	0000
		No. 10	0.203"	0.812"	0.130" to 0.151"	100°	1	000000000	0000
		1/4"	0.281"	1.250"	0.271" to 0.291"	82°	1	000000000	00000


		1/4"	0.281"	1.250"	0.271" to 0.291"	100°	1	000000000	00000
		5/16"	0.344"	1.250"	0.198" to 0.218"	82°	1	000000000	00000
		M3	3.2 mm	12.0 mm	2.2 mm to 2.8 mm	90°	1	000000000	0000
		M3	3.2 mm	12.0 mm	2.2 mm to 2.8 mm	100°	1	000000000	0000
		M4	4.3 mm	16.0 mm	2.7 mm to 3.3 mm	90°	1	000000000	0000
		M4	4.3 mm	16.0 mm	2.7 mm to 3.3 mm	100°	1	000000000	0000
		M5	5.3 mm	22.0 mm	3.2 mm to 3.8 mm	90°	1	000000000	0000
		M5	5.3 mm	22.0 mm	3.2 mm to 3.8 mm	100°	1	000000000	0000
		M6	6.4 mm	32.0 mm	3.7 mm to 4.3 mm	90°	1	000000000	00000
		M6	6.4 mm	32.0 mm	3.7 mm to 4.3 mm	100°	1	000000000	00000


		M8	8.4 mm	32.0 mm	4.5 mm to 5.1 mm	90°	1	000000000	00000


		316 Stainless Steel



				No. 4	0.125"	0.438"	0.084" to 0.104"	82°	1	0000000	0000


				No. 5	0.140"	0.500"	0.094" to 0.114"	82°	1	0000000	0000
				No. 6	0.156"	0.562"	0.097" to 0.117"	82°	1	0000000	0000
				No. 8	0.188"	0.750"	0.115" to 0.135"	82°	1	0000000	0000
				No. 10	0.203"	0.812"	0.130" to 0.151"	82°	1	0000000	0000
				1/4"	0.281"	1.250"	0.271" to 0.291"	82°	1	0000000	00000
				5/16"	0.344"	1.250"	0.198" to 0.218"	82°	1	0000000	00000
				M3	3.2 mm	12.0 mm	2.2 mm to 2.8 mm	90°	1	0000000	0000
				M3	3.2 mm	12.0 mm	2.2 mm to 2.8 mm	100°	1	0000000	0000
				M4	4.3 mm	16.0 mm	2.7 mm to 3.3 mm	90°	1	0000000	0000
				M4	4.3 mm	16.0 mm	2.7 mm to 3.3 mm	100°	1	0000000	0000


				M5	5.3 mm	22.0 mm	3.2 mm to 3.8 mm	90°	1	0000000	0000
				M5	5.3 mm	22.0 mm	3.2 mm to 3.8 mm	100°	1	0000000	00000
				M6	6.4 mm	32.0 mm	3.7 mm to 4.3 mm	90°	1	0000000	00000
				M6	6.4 mm	32.0 mm	3.7 mm to 4.3 mm	100°	1	0000000	00000
				M8	8.4 mm	32.0 mm	4.5 mm to 5.1 mm	90°	1	0000000	00000


				Black-Oxide Steel



						No. 4	0.125"	0.438"	0.084" to 0.104"	82°	5	000000000	0000


No. 4	0.125"					0.438"	0.084" to 0.104"	100°	5	000000000	00000
No. 5	0.140"					0.500"	0.084" to 0.104"	100°	5	000000000	00000
No. 5	0.140"					0.500"	0.094" to 0.114"	82°	5	000000000	00000
No. 6	0.156"					0.562"	0.084" to 0.104"	100°	5	000000000	00000
No. 6	0.156"					0.562"	0.097" to 0.117"	82°	5	000000000	00000
No. 8	0.188"					0.750"	0.115" to 0.135"	82°	5	000000000	0000
No. 8	0.188"					0.750"	0.115" to 0.135"	100°	5	000000000	00000
No. 8	0.188"					1.000"	0.115" to 0.135"	82°	5	000000000	00000
No. 10	0.203"					0.812"	0.130" to 0.151"	82°	5	000000000	00000
No. 10	0.203"					0.812"	0.130" to 0.151"	100°	1	000000000	0000


No. 10	0.203"					1.250"	0.130" to 0.151"	82°	1	000000000	0000
No. 10	0.203"					1.250"	0.130" to 0.151"	100°	1	000000000	0000
1/4"	0.281"					1.250"	0.271" to 0.291"	82°	1	000000000	0000
1/4"	0.281"					1.250"	0.271" to 0.291"	100°	1	000000000	0000
1/4"	0.281"					2.000"	0.271" to 0.291"	82°	1	000000000	00000
5/16"	0.344"					1.250"	0.198" to 0.218"	82°	1	000000000	00000
M3	3.2 mm					12.0 mm	2.2 mm to 2.8 mm	90°	5	000000000	0000
M3	3.2 mm					12.0 mm	2.2 mm to 2.8 mm	100°	5	000000000	0000
M4	4.3 mm					16.0 mm	2.7 mm to 3.3 mm	90°	5	000000000	0000
M4	4.3 mm					16.0 mm	2.7 mm to 3.3 mm	100°	5	000000000	0000


M5	5.3 mm					22.0 mm	3.2 mm to 3.8 mm	90°	5	000000000	00000
M5	5.3 mm					22.0 mm	3.2 mm to 3.8 mm	100°	1	000000000	0000
M6	6.4 mm					32.0 mm	3.7 mm to 4.3 mm	90°	1	000000000	0000
M6	6.4 mm					32.0 mm	3.7 mm to 4.3 mm	100°	1	000000000	0000
M8	8.4 mm					32.0 mm	4.5 mm to 5.1 mm	90°	1	000000000	00000

Countersunk Insulating Sleeve Washers

Flat- and oval-head screws sit flush within these insulating washers, so they won't stick out and snag on objects. Washers cover the screw head and a portion of the threads to block electrical current and prevent short circuits. They also extend the life of your assembly by preventing galvanic corrosion, which is when two different metals rust more quickly due to contact with each other.

Nylon—Our most versatile insulating washers, these block unwanted current in everything from switches and circuit breakers to control panels and electric motors.

		Sleeve						Temp. Range, ° F
	For Screw Size	Ht.	OD	ID	OD	Overall Ht.	Countersink Angle	Min.	Max.	Color	Pkg. Qty.		Pkg.
Nylon



		No. 10	0.067"	0.272"	0.200"	0.488"	0.177"	90°	-40	180	White	10	000000000	00000


		1/4"	0.067"	0.315"	0.240"	0.504"	0.197"	90°	-40	180	White	10	000000000	0000
		5/16"	0.063"	0.390"	0.320"	0.732"	0.236"	90°	-40	180	White	10	000000000	0000
		3/8"	0.059"	0.469"	0.397"	0.898"	0.276"	90°	-40	180	White	10	000000000	0000
		M4	2.000 mm	5.900 mm	4.100 mm	10.400 mm	4.300 mm	90°	-40	180	White	10	000000000	0000
		M5	1.700 mm	6.900 mm	5.100 mm	12.400 mm	4.500 mm	90°	-40	180	White	10	000000000	0000
		M6	1.700 mm	8.000 mm	6.000 mm	12.800 mm	5.000 mm	90°	-40	180	White	10	000000000	0000
		M8	1.600 mm	9.900 mm	8.100 mm	18.600 mm	6.000 mm	90°	-40	180	White	10	000000000	0000
		M10	1.500 mm	11.900 mm	10.100 mm	22.800 mm	7.000 mm	90°	-40	180	White	10	000000000	0000
		M12	1.900 mm	13.000 mm	12.100 mm	27.500 mm	8.500 mm	90°	-40	180	White	10	000000000	0000

Countersunk Tooth Lock Washers

These washers grip flat- and oval-head countersunk screws, so you get a secure hold without overtightening. They resist loosening in applications with constant motion, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.

External Tooth

Teeth on the outside edge bite into both the screw head and the mating surface to lock the assembly in place.

Wear-Resistant 400 Series Stainless Steel—These grip hard material better than other types of stainless steel. They are not as corrosion resistant as 18-8 and 316 stainless steel, so they are best for environments that experience occasional moisture.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

DIN 6798—Best for slightly bumpy or irregular surfaces because the teeth are angled to make even contact with the material.

	ID	OD	Thk.	Countersink Angle	Specs. Met	Pkg. Qty.		Pkg.
Wear-Resistant 400 Series Stainless Steel



	No. 6	0.140"	0.289"	0.017" to 0.021"	82°	ASME B18.21.1	100	000000000	00000


	No. 8	0.167"	0.322"	0.017" to 0.021"	82°	ASME B18.21.1	100	000000000	0000
	No. 10	0.195"	0.354"	0.020" to 0.025"	82°	ASME B18.21.1	25	000000000	0000
	No. 12	0.220"	0.421"	0.020" to 0.025"	82°	ASME B18.21.1	50	000000000	0000
	1/4"	0.255"	0.454"	0.020" to 0.025"	82°	ASME B18.21.1	25	000000000	0000
	5/16"	0.318"	0.599"	0.023" to 0.028"	82°	ASME B18.21.1	25	000000000	0000


	Zinc-Plated Steel



			No. 4	0.113"	0.213"	0.015" to 0.019"	82°	ASME B18.21.1	50	000000000	00000


			No. 6	0.140"	0.289"	0.017" to 0.021"	82°	ASME B18.21.1	100	000000000	00000
			No. 8	0.167"	0.322"	0.017" to 0.021"	82°	ASME B18.21.1	100	000000000	00000
			No. 10	0.195"	0.354"	0.020" to 0.025"	82°	ASME B18.21.1	50	000000000	00000
			No. 12	0.220"	0.421"	0.020" to 0.025"	82°	ASME B18.21.1	100	000000000	00000
			1/4"	0.255"	0.458"	0.022"	82°	ASME B18.21.1	100	000000000	00000
			5/16"	0.318"	0.599"	0.023" to 0.028"	82°	ASME B18.21.1	100	000000000	00000
			3/8"	0.383"	0.765"	0.028" to 0.034"	82°	ASME B18.21.1	25	000000000	00000
			1/2"	0.512"	0.976"	0.037" to 0.045"	82°	ASME B18.21.1	10	000000000	0000
			M3	3.2 mm	6.0 mm	0.2 mm to 0.3 mm	90°	DIN 6798	100	00000000	00000
			M4	4.3 mm	8.0 mm	0.2 mm to 0.3 mm	90°	DIN 6798	100	00000000	00000


			M5	5.3 mm	9.8 mm	0.3 mm to 0.4 mm	90°	DIN 6798	50	00000000	00000
			M6	6.4 mm	11.8 mm	0.4 mm to 0.5 mm	90°	DIN 6798	50	00000000	0000
			M8	8.4 mm	15.3 mm	0.4 mm to 0.5 mm	90°	DIN 6798	50	00000000	00000
			M10	10.5 mm	19.0 mm	0.5 mm to 0.6 mm	90°	DIN 6798	25	00000000	0000
			M12	13.0 mm	23.0 mm	0.5 mm to 0.6 mm	90°	DIN 6798	25	00000000	00000


			Black-Oxide Steel



					No. 4	0.113"	0.213"	0.015" to 0.019"	82°	ASME B18.21.1	25	000000000	0000


					No. 6	0.140"	0.289"	0.017" to 0.021"	82°	ASME B18.21.1	25	000000000	00000
					No. 8	0.167"	0.322"	0.017" to 0.021"	82°	ASME B18.21.1	25	000000000	0000
					No. 10	0.195"	0.354"	0.020" to 0.025"	82°	ASME B18.21.1	25	000000000	0000
					No. 12	0.220"	0.421"	0.020" to 0.025"	82°	ASME B18.21.1	25	000000000	0000
					1/4"	0.255"	0.454"	0.020" to 0.025"	82°	ASME B18.21.1	25	000000000	0000
					5/16"	0.318"	0.599"	0.023" to 0.028"	82°	ASME B18.21.1	25	000000000	0000
					3/8"	0.383"	0.765"	0.028" to 0.034"	82°	ASME B18.21.1	25	000000000	0000
					1/2"	0.512"	0.976"	0.037" to 0.045"	82°	ASME B18.21.1	10	000000000	00000