Self-Clinching Flush-Mount Nuts

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400 Series Stainless Steel

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Drill Bit Decimal Size Equivalent

For Maximum Panel Hardness

DFARS Specialty Metals

For Use With

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Export Control Classification Number (ECCN)

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110 Products

For Use With

Aluminum

Ideal for lightweight panels and parts

48 products

Steel

Your go-to choice for most metal parts

48 products

For Use With

Stainless Steel

Our strongest nuts made from A286 or 400-series stainless steel

62 products

Performance

Self-Aligning

Shift to let screws pass through off-center holes

17 products

Flush-Profile Press-Fit Nuts for Sheet Metal

These nuts sit flush in panels for a smooth surface, so they fit in cramped enclosures. You can also install them onto parts before forming them, since the head bends along with the metal. The hex-shaped head locks into holes when installed, so the nuts won't twist as you fasten screws.

18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust and mild chemicals.

High-Strength 400 Series Stainless Steel—Hard enough to install in stainless steel panels. These nuts are stronger than 18-8 stainless steel, but not as corrosion resistant, so they're best for environments with only occasional moisture.

					Head
	Thread Size	Drill Bit Size	For Min. Panel Thk.	For Maximum Panel Hardness	Wd.	Ht.	Ht.	PEM® Part No.	Head Shape	Pkg. Qty.		Pkg.







				18-8 Stainless Steel

				2-56	20	0.04"	Brinell 125, Rockwell B70	3/16"	0.01"	0.036"	—	Hex	5	000000000	00000


				2-56	20	0.062"	Brinell 125, Rockwell B70	3/16"	0.02"	0.058"	—	Hex	5	000000000	0000
				2-56	20	0.125"	Brinell 125, Rockwell B70	3/16"	0.03"	0.117"	—	Hex	5	000000000	0000
				4-40	20	0.04"	Brinell 125, Rockwell B70	3/16"	0.01"	0.036"	—	Hex	25	000000000	00000
				4-40	20	0.062"	Brinell 125, Rockwell B70	3/16"	0.02"	0.058"	—	Hex	25	000000000	00000
				4-40	20	0.125"	Brinell 125, Rockwell B70	3/16"	0.03"	0.117"	—	Hex	10	000000000	00000
				6-32	13/64"	0.062"	Brinell 125, Rockwell B70	1/4"	0.02"	0.058"	—	Hex	25	000000000	00000
				6-32	13/64"	0.125"	Brinell 125, Rockwell B70	1/4"	0.03"	0.117"	—	Hex	25	000000000	00000
				6-32	13/64"	0.187"	Brinell 125, Rockwell B70	1/4"	0.03"	0.177"	—	Hex	5	000000000	0000
				8-32	17/64"	0.062"	Brinell 125, Rockwell B70	5/16"	0.02"	0.058"	—	Hex	25	000000000	00000
				8-32	17/64"	0.125"	Brinell 125, Rockwell B70	5/16"	0.03"	0.117"	—	Hex	10	000000000	00000


				8-32	17/64"	0.187"	Brinell 125, Rockwell B70	5/16"	0.03"	0.177"	—	Hex	5	000000000	0000
				10-32	17/64"	0.093"	Brinell 125, Rockwell B70	5/16"	0.03"	0.085"	—	Hex	25	000000000	00000
				10-32	17/64"	0.125"	Brinell 125, Rockwell B70	5/16"	0.03"	0.117"	—	Hex	25	000000000	00000
				10-32	17/64"	0.187"	Brinell 125, Rockwell B70	5/16"	0.03"	0.177"	—	Hex	5	000000000	00000
				1/4"-20	W	0.125"	Brinell 125, Rockwell B70	7/16"	0.03"	0.117"	—	Hex	10	000000000	0000
				1/4"-20	W	0.187"	Brinell 125, Rockwell B70	7/16"	0.03"	0.177"	—	Hex	10	000000000	00000
				1/4"-20	W	0.375"	Brinell 125, Rockwell B70	7/16"	0.03"	0.359"	—	Hex	10	000000000	00000
				M2 x 0.4 mm	4.4 mm	1.53 mm	Brinell 125, Rockwell B70	4.8 mm	0.5 mm	1.53 mm	F-M2-1	Hex	10	000000000	0000
				M2 x 0.4 mm	4.4 mm	2.3 mm	Brinell 125, Rockwell B70	4.8 mm	0.6 mm	2.3 mm	F-M2-2	Hex	10	000000000	0000
				M2.5 x 0.45 mm	4.4 mm	1.53 mm	Brinell 125, Rockwell B70	4.8 mm	0.5 mm	1.53 mm	F-M2.5-1	Hex	25	000000000	00000


				M2.5 x 0.45 mm	4.4 mm	2.3 mm	Brinell 125, Rockwell B70	4.8 mm	0.6 mm	2.3 mm	F-M2.5-2	Hex	10	000000000	0000
				M3 x 0.5 mm	4.4 mm	1.53 mm	Brinell 125, Rockwell B70	4.8 mm	0.5 mm	1.53 mm	F-M3-1	Hex	25	000000000	00000
				M3 x 0.5 mm	4.4 mm	2.32 mm	Brinell 125, Rockwell B70	4.8 mm	0.6 mm	2.3 mm	F-M3-2	Hex	25	000000000	00000
				M4 x 0.7 mm	7.4 mm	1.53 mm	Brinell 125, Rockwell B70	7.9 mm	0.5 mm	1.53 mm	F-M4-1	Hex	10	000000000	0000
				M4 x 0.7 mm	7.4 mm	2.32 mm	Brinell 125, Rockwell B70	7.9 mm	0.6 mm	2.3 mm	F-M4-2	Hex	10	000000000	0000
				M5 x 0.8 mm	7.9 mm	1.53 mm	Brinell 125, Rockwell B70	8.7 mm	0.5 mm	1.53 mm	F-M5-1	Hex	10	000000000	0000
				M5 x 0.8 mm	7.9 mm	2.32 mm	Brinell 125, Rockwell B70	8.7 mm	0.6 mm	2.3 mm	F-M5-2	Hex	10	000000000	0000
				M6 x 1 mm	8.7 mm	3.18 mm	Brinell 125, Rockwell B70	9.5 mm	0.8 mm	3.05 mm	F-M6-3	Hex	10	000000000	00000
				M6 x 1 mm	8.7 mm	3.96 mm	Brinell 125, Rockwell B70	9.5 mm	1 mm	3.84 mm	F-M6-4	Hex	10	000000000	00000
				M6 x 1 mm	8.7 mm	4.75 mm	Brinell 125, Rockwell B70	9.5 mm	1.2 mm	4.63 mm	F-M6-5	Hex	5	000000000	0000




						High-Strength 400 Series Stainless Steel

						2-56	11/64"	0.06"	Brinell 180, Rockwell B85	3/16"	0.02"	0.06"	F4-256-1	Hex	10	000000000	0000


						4-40	11/64"	0.06"	Brinell 180, Rockwell B85	3/16"	0.02"	0.06"	F4-440-1	Hex	10	000000000	0000
						4-40	11/64"	0.091"	Brinell 180, Rockwell B85	3/16"	0.02"	0.09"	F4-440-2	Hex	10	000000000	0000
						6-32	3	0.06"	Brinell 180, Rockwell B85	1/4"	0.02"	0.06"	F4-632-1	Hex	25	000000000	0000
						6-32	3	0.091"	Brinell 180, Rockwell B85	1/4"	0.02"	0.09"	F4-632-2	Hex	25	000000000	0000
						8-32	L	0.06"	Brinell 180, Rockwell B85	5/16"	0.02"	0.06"	F4-832-1	Hex	10	000000000	0000
						8-32	L	0.091"	Brinell 180, Rockwell B85	5/16"	0.02"	0.09"	F4-832-2	Hex	10	000000000	0000
						10-32	5/16"	0.06"	Brinell 180, Rockwell B85	11/32"	0.02"	0.06"	F4-032-1	Hex	10	000000000	0000
						10-32	5/16"	0.091"	Brinell 180, Rockwell B85	11/32"	0.02"	0.09"	F4-032-2	Hex	10	000000000	0000
						M2 x 0.4 mm	4.4 mm	1.53 mm	Brinell 180, Rockwell B85	4.8 mm	0.5 mm	1.53 mm	F4-M2-1	Hex	10	000000000	0000
M2.5 x 0.45 mm						4.4 mm	1.53 mm	Brinell 180, Rockwell B85	4.8 mm	0.5 mm	1.53 mm	F4-M2.5-1	Hex	10	000000000	0000


M2.5 x 0.45 mm	4.4 mm					2.32 mm	Brinell 180, Rockwell B85	4.8 mm	0.6 mm	2.3 mm	F4-M2.5-2	Hex	10	000000000	0000
M3 x 0.5 mm	4.4 mm					1.53 mm	Brinell 180, Rockwell B85	4.8 mm	0.5 mm	1.53 mm	F-M3-1	Hex	10	000000000	0000
M3 x 0.5 mm	4.4 mm	2.32 mm				Brinell 180, Rockwell B85	4.8 mm	0.6 mm	2.3 mm	F4-M3-2	Hex	10	000000000	0000
M4 x 0.7 mm	7.4 mm	1.53 mm	Brinell 180, Rockwell B85			7.9 mm	0.5 mm	1.53 mm	F4-M4-1	Hex	10	000000000	0000
M4 x 0.7 mm	7.4 mm	2.32 mm	Brinell 180, Rockwell B85			7.9 mm	0.6 mm	2.3 mm	F4-M4-2	Hex	10	000000000	0000
M5 x 0.8 mm	7.9 mm	1.53 mm	Brinell 180, Rockwell B85			8.7 mm	0.5 mm	1.53 mm	F4-M5-1	Hex	10	000000000	0000
M5 x 0.8 mm	7.9 mm	2.32 mm	Brinell 180, Rockwell B85			8.7 mm	0.6 mm	2.3 mm	F4-M5-2	Hex	10	000000000	0000

Press-Fit Nuts for Sheet Metal

Add permanent threads to thin panels in seconds. The knurls on these clinch-style nuts deform and grip sheet metal to create a permanent hold. Push them into a drilled or punched hole with an arbor press around your workpiece to install—no messy welding required.

High-Temperature High-Strength A286 Stainless Steel—Our strongest press-fit nuts are hard enough to install in stainless steel panels. They also withstand temperatures up to 1150° F and resist corrosion from chemicals such as bleach and chlorine.

				Head
Thread Size	Drill Bit Size	For Min. Panel Thk.	For Maximum Panel Hardness	OD	Ht.	PEM® Part No.	Head Shape	Pkg. Qty.		Pkg.







			High-Temperature High-Strength A286 Stainless Steel

			2-56	19	0.03"	Brinell 192, Rockwell B90	0.25"	0.07"	SP-256-0	Round	10	000000000	00000


			2-56	19	0.04"	Brinell 192, Rockwell B90	0.25"	0.07"	SP-256-1	Round	10	000000000	0000
			2-56	19	0.056"	Brinell 192, Rockwell B90	0.25"	0.07"	SP-256-2	Round	10	000000000	0000
			4-40	19	0.03"	Brinell 192, Rockwell B90	0.25"	0.07"	SP-440-0	Round	10	000000000	0000
			4-40	19	0.04"	Brinell 192, Rockwell B90	0.25"	0.07"	SP-440-1	Round	10	000000000	0000
			4-40	19	0.056"	Brinell 192, Rockwell B90	0.25"	0.07"	SP-440-2	Round	10	000000000	0000
			6-32	3/16"	0.03"	Brinell 192, Rockwell B90	0.28"	0.07"	SP-632-0	Round	10	000000000	0000
			6-32	3/16"	0.04"	Brinell 192, Rockwell B90	0.28"	0.07"	SP-632-1	Round	10	000000000	0000
			6-32	3/16"	0.056"	Brinell 192, Rockwell B90	0.28"	0.07"	SP-632-2	Round	10	000000000	0000
			8-32	3	0.03"	Brinell 192, Rockwell B90	0.31"	0.09"	SP-832-0	Round	5	000000000	0000
			8-32	3	0.04"	Brinell 192, Rockwell B90	0.31"	0.09"	SP-832-1	Round	5	000000000	0000


			8-32	3	0.056"	Brinell 192, Rockwell B90	0.31"	0.09"	SP-832-2	Round	5	000000000	0000
			10-24	1/4"	0.03"	Brinell 192, Rockwell B90	0.34"	0.09"	SP-024-0	Round	5	000000000	0000
			10-24	1/4"	0.04"	Brinell 192, Rockwell B90	0.34"	0.09"	SP-024-1	Round	5	000000000	0000
			10-24	1/4"	0.056"	Brinell 192, Rockwell B90	0.34"	0.09"	SP-024-2	Round	5	000000000	0000
			10-32	1/4"	0.03"	Brinell 192, Rockwell B90	0.34"	0.09"	SP-032-0	Round	5	000000000	0000
			10-32	1/4"	0.04"	Brinell 192, Rockwell B90	0.34"	0.09"	SP-032-1	Round	5	000000000	0000
			10-32	1/4"	0.056"	Brinell 192, Rockwell B90	0.34"	0.09"	SP-032-2	Round	5	000000000	0000
			1/4"-20	11/32"	0.047"	Brinell 192, Rockwell B90	0.44"	0.17"	SP-0420-0	Round	1	000000000	0000
			1/4"-20	11/32"	0.056"	Brinell 192, Rockwell B90	0.44"	0.17"	SP-0420-1	Round	1	000000000	0000
			1/4"-20	11/32"	0.09"	Brinell 192, Rockwell B90	0.44"	0.17"	SP-0420-2	Round	1	000000000	0000


			5/16"-18	Z	0.056"	Brinell 192, Rockwell B90	0.5"	0.23"	SP-0518-1	Round	1	000000000	0000
			5/16"-18	Z	0.09"	Brinell 192, Rockwell B90	0.5"	0.23"	SP-0518-2	Round	1	000000000	0000
			3/8"-16	1/2"	0.09"	Brinell 192, Rockwell B90	0.56"	0.27"	SP-0616-1	Round	1	000000000	0000
			3/8"-16	1/2"	0.125"	Brinell 192, Rockwell B90	0.56"	0.27"	SP-0616-2	Round	1	000000000	0000
			M2 x 0.4 mm	4.2 mm	1 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M2-1	Round	5	000000000	0000
			M2 x 0.4 mm	4.2 mm	1.4 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M2-2	Round	5	000000000	0000
			M2.5 x 0.45 mm	4.2 mm	0.8 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M2.5-0	Round	5	000000000	0000
			M2.5 x 0.45 mm	4.2 mm	1 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M2.5-1	Round	5	000000000	0000
			M2.5 x 0.45 mm	4.2 mm	1.4 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M2.5-2	Round	5	000000000	0000
			M3 x 0.5 mm	4.2 mm	0.8 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M3-0	Round	10	000000000	0000


			M3 x 0.5 mm	4.2 mm	1 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M3-1	Round	10	000000000	0000
			M3 x 0.5 mm	4.2 mm	1.4 mm	Brinell 192, Rockwell B90	6.35 mm	1.5 mm	SP-M3-2	Round	10	000000000	0000
			M4 x 0.7 mm	5.4 mm	0.8 mm	Brinell 192, Rockwell B90	7.87 mm	2 mm	SP-M4-0	Round	5	000000000	0000
			M4 x 0.7 mm	5.4 mm	1 mm	Brinell 192, Rockwell B90	7.87 mm	2 mm	SP-M4-1	Round	5	000000000	0000
			M4 x 0.7 mm	5.4 mm	1.4 mm	Brinell 192, Rockwell B90	7.87 mm	2 mm	SP-M4-2	Round	5	000000000	0000
			M5 x 0.8 mm	6.4 mm	0.8 mm	Brinell 192, Rockwell B90	8.64 mm	2 mm	SP-M5-0	Round	5	000000000	0000
			M5 x 0.8 mm	6.4 mm	1 mm	Brinell 192, Rockwell B90	8.64 mm	2 mm	SP-M5-1	Round	5	000000000	0000
			M5 x 0.8 mm	6.4 mm	1.4 mm	Brinell 192, Rockwell B90	8.64 mm	2 mm	SP-M5-2	Round	5	000000000	0000
			M6 x 1 mm	8.8 mm	1.4 mm	Brinell 192, Rockwell B90	11.18 mm	4.08 mm	SP-M6-1	Round	1	000000000	0000
			M6 x 1 mm	8.8 mm	2.29 mm	Brinell 192, Rockwell B90	11.18 mm	4.08 mm	SP-M6-2	Round	1	000000000	0000


			M8 x 1.25 mm	10.5 mm	1.4 mm	Brinell 192, Rockwell B90	12.7 mm	5.47 mm	SP-M8-1	Round	1	000000000	0000
			M8 x 1.25 mm	10.5 mm	2.29 mm	Brinell 192, Rockwell B90	12.7 mm	5.47 mm	SP-M8-2	Round	1	000000000	0000
			M10 x 1.5 mm	14 mm	2.29 mm	Brinell 192, Rockwell B90	17.35 mm	7.48 mm	SP-M10-1	Round	1	000000000	0000

Self-Aligning Press-Fit Locknuts for Sheet Metal

Fasten together unaligned parts and keep screws in place. The threaded hole within these press-fit nuts shifts up to .01" in any direction, so you can fasten together thin panels with off-center holes. The irregularly shaped threads tightly grip screws to prevent them from loosening or backing out under vibration.

18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust and mild chemicals.

					Head		Barrel
	Thread Size	Drill Bit Size	For Min. Panel Thk.	For Maximum Panel Hardness	OD	Ht.	Dia.	Ht.	PEM® Part No.	Pkg. Qty.		Pkg.
Distorted-Thread Locking







				18-8 Stainless Steel

				4-40	L	0.038"	Brinell 125, Rockwell B70	0.36"	0.038"	9/64"	3/16"	LAC-440-1MD	5	000000000	00000


				4-40	L	0.054"	Brinell 125, Rockwell B70	0.36"	0.054"	9/64"	3/16"	LAC-440-2MD	5	000000000	0000
				6-32	21/64"	0.038"	Brinell 125, Rockwell B70	0.39"	0.038"	3/16"	13/64"	LAC-632-1MD	5	000000000	00000
				6-32	21/64"	0.054"	Brinell 125, Rockwell B70	0.39"	0.054"	3/16"	13/64"	LAC-632-2MD	5	000000000	00000
				8-32	U	0.038"	Brinell 125, Rockwell B70	0.44"	0.038"	15/64"	13/64"	LAC-832-1MD	5	000000000	00000
				8-32	U	0.054"	Brinell 125, Rockwell B70	0.44"	0.054"	15/64"	13/64"	LAC-832-2MD	5	000000000	00000
				10-24	13/32"	0.054"	Brinell 125, Rockwell B70	0.47"	0.054"	7/32"	17/64"	LAC-024-2MD	5	000000000	00000
				10-32	13/32"	0.038"	Brinell 125, Rockwell B70	0.47"	0.038"	7/32"	17/64"	LAC-032-1MD	5	000000000	00000
				10-32	13/32"	0.054"	Brinell 125, Rockwell B70	0.47"	0.054"	17/64"	17/64"	LAC-032-2MD	5	000000000	00000
				1/4"-20	33/64"	0.054"	Brinell 125, Rockwell B70	0.6"	0.054"	11/32"	5/16"	LAC-0420-2MD	1	000000000	0000
				M3 x 0.5 mm	7.4 mm	0.97 mm	Brinell 125, Rockwell B70	9.14 mm	0.97 mm	4.2 mm	4.8 mm	LAC-M3-1MD	5	000000000	00000


				M3 x 0.5 mm	7.4 mm	1.38 mm	Brinell 125, Rockwell B70	9.14 mm	1.38 mm	3.6 mm	4.8 mm	LAC-M3-2MD	5	000000000	00000
				M4 x 0.7 mm	9.4 mm	0.97 mm	Brinell 125, Rockwell B70	11.18 mm	0.97 mm	4.8 mm	5.3 mm	LAC-M4-1MD	5	000000000	00000
				M4 x 0.7 mm	9.4 mm	1.38 mm	Brinell 125, Rockwell B70	11.18 mm	1.38 mm	4.8 mm	5.3 mm	LAC-M4-2MD	5	000000000	00000
				M5 x 0.8 mm	10.3 mm	0.97 mm	Brinell 125, Rockwell B70	11.94 mm	0.97 mm	6 mm	6.9 mm	LAC-M5-1MD	5	000000000	00000
				M5 x 0.8 mm	10.3 mm	1.38 mm	Brinell 125, Rockwell B70	11.94 mm	1.38 mm	6 mm	6.9 mm	LAC-M5-2MD	5	000000000	00000
				M6 x 1 mm	13.1 mm	1.38 mm	Brinell 125, Rockwell B70	15.24 mm	1.38 mm	7.2 mm	7.9 mm	LAC-M6-2MD	1	000000000	0000