M2.5 Press-Fit Nuts | McMaster-Carr

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20 Products

Press-Fit Nut Installation Tools

Use these tools to install press-fit nuts by hand. They include one hand tool, seven hole punches and dies, five fastener anvils, one flat punch, one punch adapter bushing, and one edge-depth guide.

For Thread Size	Max. Force, lbf	Wt., lb.		Each
M2, M2.5, M3, M3.5, M4, M5	2,500	2.75	90818A102	0000000

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.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

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

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.

Press-Fit Nuts												Installation Tool
				Head, mm
Thread Size	Drill Bit Size, mm	For Min. Panel Thk., mm	For Maximum Panel Hardness	OD	Wd.	Ht.	PEM® Part No.	Head Shape	Pkg. Qty.		Pkg.		Each







			Zinc-Plated Steel

			M2.5 x 0.45 mm	4.2	0.8	Brinell 150, Rockwell B80	6.35	—	1.5	S-M2.5-0ZI	Round	25	95185A480	00000	90818A102	0000000


			M2.5 x 0.45 mm	4.2	1	Brinell 150, Rockwell B80	6.35	—	1.5	S-M2.5-1ZI	Round	25	95185A490	0000	90818A102	000000
			M2.5 x 0.45 mm	4.2	1.4	Brinell 150, Rockwell B80	6.35	—	1.5	S-M2.5-2ZI	Round	25	95185A510	0000	90818A102	000000
			M2.5 x 0.45 mm	4.5	1	Not Rated	—	5.5	2.1	—	Hex	10	99437A125	0000	90818A102	000000




					18-8 Stainless Steel

					M2.5 x 0.45 mm	3.8	0.64	Brinell 125, Rockwell B70	5.6	—	1.4	SMPS-M2.5	Round	25	96439A420	0000	———	0


					M2.5 x 0.45 mm	4.2	0.8	Brinell 125, Rockwell B70	6.35	—	1.5	CLS-M2.5-0	Round	25	96439A440	0000	90818A102	000000
					M2.5 x 0.45 mm	4.2	1	Brinell 125, Rockwell B70	6.35	—	1.5	CLS-M2.5-1	Round	25	96439A460	0000	90818A102	000000
					M2.5 x 0.45 mm	4.2	1.4	Brinell 125, Rockwell B70	6.35	—	1.5	CLS-M2.5-2	Round	25	96439A470	0000	90818A102	000000
					M2.5 x 0.45 mm	4.2	2.29	Brinell 150, Rockwell B80	6.35	—	1.5	—	Round	25	96439A212	0000	———	0




							High-Temperature High-Strength A286 Stainless Steel

							M2.5 x 0.45 mm	3.8	0.64	Brinell 192, Rockwell B90	5.6	—	1.4	SMPP-M2.5	Round	10	92002A140	0000	———	0


							M2.5 x 0.45 mm	4.2	0.8	Brinell 192, Rockwell B90	6.35	—	1.5	SP-M2.5-0	Round	5	92002A470	0000	———	0
							M2.5 x 0.45 mm	4.2	1	Brinell 192, Rockwell B90	6.35	—	1.5	SP-M2.5-1	Round	5	92002A480	0000	———	0
							M2.5 x 0.45 mm	4.2	1.4	Brinell 192, Rockwell B90	6.35	—	1.5	SP-M2.5-2	Round	5	92002A490	0000	———	0

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







			18-8 Stainless Steel

			M2.5 x 0.45 mm	4.4	1.53	Brinell 125, Rockwell B70	4.8	0.5	1.53	F-M2.5-1	Hex	25	94674A605	000000


			M2.5 x 0.45 mm	4.4	2.3	Brinell 125, Rockwell B70	4.8	0.6	2.3	F-M2.5-2	Hex	10	94674A218	0000




					High-Strength 400 Series Stainless Steel

					M2.5 x 0.45 mm	4.4	1.53	Brinell 180, Rockwell B85	4.8	0.5	1.53	F4-M2.5-1	Hex	10	92419A112	0000


					M2.5 x 0.45 mm	4.4	2.32	Brinell 180, Rockwell B85	4.8	0.6	2.3	F4-M2.5-2	Hex	10	92419A113	0000

Press-Fit Nuts for Soft Metals and Plastic

The ridged knurls on these broach-style nuts cut into soft metal and plastic without deforming them. They add permanent threads to everything from soft brass panels to brittle circuit boards.

Tin-Plated Steel—The plating resists corrosion from mild chemicals and salt water.

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

Press-Fit Nuts										Installation Tool
				Head, mm
Thread Size	Drill Bit Size, mm	For Min. Panel Thk., mm	For Maximum Panel Hardness	OD	Ht.	PEM® Part No.	Pkg. Qty.		Pkg.		Each







			Tin-Plated Steel

			M2.5 x 0.45 mm	4.2	1.53	Brinell 107, Rockwell B60	5.56	1.5	KF2-M2.5-ET	25	95117A488	00000	90818A102	0000000




					18-8 Stainless Steel

					M2.5 x 0.45 mm	19 Ga.	1.53	Brinell 125, Rockwell B70	5.56	1.5	KFS2-M2.5	10	94100A160	0000	90818A102	000000