Metric Push Nuts | McMaster-Carr

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151 Products

Push Nut Installation Tools

Push nuts and retaining rings over threaded fasteners and shafts. These tools have a magnetized tip so nuts don't fall off as you slide them on.

				Shaft
For Shaft Dia.	For Screw Size	Bolt Clearance	Overall Lg.	Lg.	Overall Wd.	Material	Handle Material	Fastener-Holding Mechanism		Each
5/64", 2 mm	No. 0, M2	13/16"	3 1/2"	2 1/4"	1/4"	Steel	Plastic	Magnet	93633A111	000000
3/32", 2.5 mm	No. 2, M2.5	1 1/8"	3 1/2"	2 1/4"	1/4"	Steel	Plastic	Magnet	93633A112	00000
1/8", 3 mm	No. 4, M3, M3.5	1 1/2"	3 1/2"	2 1/4"	5/16"	Steel	Plastic	Magnet	93633A113	00000
5/32", 4 mm	No. 6, M4	2 1/2"	3 1/2"	2 1/4"	7/16"	Steel	Plastic	Magnet	93633A010	00000
3/16", 4.5 mm	No. 8	2 1/2"	3 1/2"	2 1/4"	1/2"	Steel	Plastic	Magnet	93633A020	00000
7/32", 5 mm	No. 10, M5	2 1/2"	3 1/2"	2 1/4"	1/2"	Steel	Plastic	Magnet	93633A030	00000
15/64", 6 mm	No. 12, M6	2 1/2"	3 1/2"	2 1/4"	1/2"	Steel	Plastic	Magnet	93633A035	00000
1/4", 7 mm	1/4"	3"	4"	2 3/4"	9/16"	Steel	Plastic	Magnet	93633A040	00000
5/16", 8 mm	5/16", M8	3"	4"	2 3/4"	11/16"	Steel	Plastic	Magnet	93633A050	00000
3/8", 10 mm	3/8", M10	3"	5"	3 3/4"	7/8"	Steel	Plastic	Magnet	93633A060	000000
7/16", 11 mm	7/16"	3"	5"	3 3/4"	15/16"	Steel	Plastic	Magnet	93633A070	00000
1/2", 12 mm, 13 mm	1/2", M12	3"	5"	3 3/4"	1"	Steel	Plastic	Magnet	93633A080	00000

Round Push Nuts

With flexible teeth that slide smoothly over threads of any pitch, these round push nuts can be used as a standalone nut for light-duty applications or as a jam nut to keep hex nuts and bolts securely fastened. All nuts have a finish that protects the steel from corrosion in wet environments.

Black Phosphate-Coated Steel—Nuts finished with black phosphate coating have a dark surface color.

Installation Tools—Installation tools (sold separately) save you time when you’re installing nuts back-to-back. They have a magnetized tip, so nuts won’t fall off while you’re sliding them on.

	Push Nuts						Installation Tools
	For Screw Size	OD, mm	Ht., mm	Pkg. Qty.		Pkg.		Each
Zinc-Plated Steel



		M5	11	1.7	100	94813A100	00000	93633A035	000000


		M6	13	1.9	100	94813A200	0000	93633A040	00000
		M6	17	2	100	94813A300	0000	93633A050	00000
		M8	16	2	100	94813A400	0000	93633A060	000000
		M10	24	2.6	50	94813A111	0000	93633A070	00000
		M12	21	3.2	50	94813A800	0000	93633A080	00000


		Black Phosphate-Coated Steel



				M10	20	2.3	50	94813A600	0000	93633A070	00000


				M12	21	3.2	50	94813A112	0000	93633A080	00000
				M14	25	3.2	50	94813A900	00000	———	0

Push-On External Retaining Rings

Style A

Style B

No groove needed—these rings grip the shaft on their own. They won't handle as much force as rings in grooves, however, so only use them with light loads. For one-time use only. Push onto the end of the shaft, or use a push nut installation tool. Use on unhardened shafts softer than the ring.

Style A—Our go-to push-on rings. The outer ring is curved and the teeth are individually stamped, which gives the rings higher holding power than other push-on rings. Commonly used in drills and steering wheels.

Style B—The teeth on these rings point upward and are slightly flexible, which accommodates a larger range of shaft and rod diameters, but reduces holding power. They are easier to install than Style A rings and commonly used to secure emblems and wheels in light-load applications.

Phosphate-Coated Carbon Steel and Black-Oxide Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.

Zinc-Plated Carbon Steel—These rings are strong with good wear resistance. They provide some corrosion resistance, but not as much as stainless steel rings.

15-7 PH Stainless Steel—Combine strength with corrosion resistance. While harder than most stainless steel rings, these will dent and scratch easier than carbon steel ones.

		Ring, mm
	For OD, mm	OD	Thk.	Ht., mm	Min. Hardness	Min. Installation Dp., mm	Pkg. Qty.		Pkg.
Style A







				Phosphate-Coated Carbon Steel

				3	8	0.25	—	Rockwell C45	1.5	100	92133A104	00000


				4	9	0.25	—	Rockwell C45	2	100	92133A105	0000
				5	10	0.25	—	Rockwell C45	2	100	92133A106	0000
				6	11	0.25	—	Rockwell C45	2.5	100	92133A107	0000
				7	12	0.25	—	Rockwell C45	2.5	100	92133A108	0000
				8	13	0.25	—	Rockwell C45	2.5	100	92133A109	0000
				9	14	0.3	—	Rockwell C45	2.5	100	92133A111	00000
				10	16	0.3	—	Rockwell C45	3	100	92133A112	00000
				12	18	0.3	—	Rockwell C45	3	100	92133A113	00000
				14	20.5	0.3	—	Rockwell C45	3	100	92133A114	00000
				15	23	0.5	—	Rockwell C45	3	25	92133A101	0000


				16	24.5	0.4	—	Rockwell C45	3	50	92133A115	00000
				17	26	0.5	—	Rockwell C45	3.5	25	92133A102	0000
				18	27	0.4	—	Rockwell C45	3.5	50	92133A116	00000
				20	29	0.5	—	Rockwell C45	3.5	50	92133A117	00000
				22	31	0.5	—	Rockwell C45	3.5	50	92133A118	00000
				25	34	0.5	—	Rockwell C45	4	25	92133A103	00000




						Zinc-Plated Carbon Steel

						3	8	0.25	—	Rockwell C45	1.5	100	96415A317	00000


						4	9	0.25	—	Rockwell C45	2	100	96415A318	00000
						5	10	0.25	—	Rockwell C45	2	100	96415A319	00000
						6	11	0.25	—	Rockwell C45	2.5	100	96415A321	00000
						7	12	0.25	—	Rockwell C45	2.5	50	96415A322	00000
						10	16	0.3	—	Rockwell C45	3	50	96415A323	00000
						12	18	0.3	—	Rockwell C45	3	50	96415A324	00000
						16	24.5	0.4	—	Rockwell C45	3	10	96415A325	0000
						20	29	0.5	—	Rockwell C45	3.5	10	96415A326	00000
						22	31	0.5	—	Rockwell C45	3.5	10	96415A327	00000




								15-7 PH Stainless Steel

								3	8	0.25	—	Rockwell C44	1.5	10	96415A312	00000


								5	10	0.25	—	Rockwell C44	2	5	96415A313	00000
								6	11	0.25	—	Rockwell C44	2.5	5	96415A314	00000
								9	14	0.3	—	Rockwell C44	2.5	5	96415A315	00000
								10	16	0.3	—	Rockwell C44	3	5	96415A316	00000


								Style B







								Phosphate-Coated Carbon Steel

								4	11.1	—	1.5	Rockwell C38	6.5	100	96415A124	00000




										Zinc-Plated Carbon Steel

										6	13.5	—	1.8	Rockwell C38	6.5	100	96415A128	00000




												Black-Oxide Carbon Steel

												1	4	—	1.3	Rockwell C47	1.5	50	96415A328	0000


												1.5	5	—	1.3	Rockwell C47	1.5	100	96415A110	00000
												2	7	—	1.7	Rockwell C47	2	200	96415A120	00000
												2.5	8.5	—	1.7	Rockwell C47	2	50	96415A329	0000
												3	10.5	—	2.2	Rockwell C47	2.5	100	96415A125	00000
												3.5	11	—	2.2	Rockwell C47	2.5	100	96415A140	00000
												4	12	—	2.2	Rockwell C47	2.5	100	96415A150	00000
				4.5								13	—	2.5	Rockwell C47	3	50	96415A331	0000
				5	14							—	2.5	Rockwell C47	3	100	96415A160	00000
				5.5	14							—	2.5	Rockwell C47	3	25	96415A332	0000
				6	16							—	3	Rockwell C47	3.5	100	96415A170	00000


				7	17							—	3	Rockwell C47	3.5	100	96415A180	00000
				8	18							—	3	Rockwell C47	3.5	100	96415A190	00000
				10	20							—	3	Rockwell C47	3.5	25	96415A210	0000

Side-Mount External Retaining Rings

When you can't access the ends of a shaft, install these rings anywhere along its length. Also known as E-Style rings, these grip the shaft with three contact points and a wide shoulder. Push into the groove with a side-mount retaining ring tool.

Ring OD is measured with the ring uninstalled.

Phosphate-Coated Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.

1.4122 Stainless Steel—Corrosion and wear resistant rings that won't break down from rubbing against other metal.

	Retaining Rings											Pliers
		For Groove, mm		Ring, mm
	For OD, mm	Dia.	Wd.	OD	Thk.	Thrust Load Cap., lbf	Min. Hardness	Specs. Met.	Pkg. Qty.		Pkg.		Each
Phosphate-Coated Carbon Steel



		1 to 1.4	0.8	0.24	1.95	0.2	10	Rockwell C46	DIN 6799	50	98543A050	00000	———	0


		1.4 to 2	1.2	0.34	2.9	0.3	20	Rockwell C46	DIN 6799	100	98543A060	0000	———	0
		2 to 2.5	1.5	0.44	3.9	0.4	40	Rockwell C46	DIN 6799	100	98543A070	00000	———	0
		2.5 to 3	1.9	0.54	4.4	0.5	70	Rockwell C46	DIN 6799	100	98543A080	0000	———	0
		3 to 4	2.3	0.64	5.9	0.6	110	Rockwell C46	DIN 6799	100	98543A101	0000	57905A41	000000
		4 to 5	3.2	0.64	6.9	0.6	140	Rockwell C46	DIN 6799	100	98543A103	0000	57905A42	00000
		5 to 7	4	0.74	8.85	0.7	210	Rockwell C46	DIN 6799	100	98543A112	0000	57905A43	00000
		6 to 8	5	0.74	10.85	0.7	250	Rockwell C46	DIN 6799	100	98543A113	0000	57905A44	00000
		7 to 9	6	0.74	11.8	0.7	300	Rockwell C46	DIN 6799	100	98543A114	0000	5728A2	00000
		8 to 11	7	0.94	13.8	0.9	400	Rockwell C46	DIN 6799	100	98543A115	0000	57905A46	00000
		9 to 12	8	1.05	15.75	1	560	Rockwell C46	DIN 6799	100	98543A116	00000	5728A2	00000


		10 to 14	9	1.15	18.2	1.1	670	Rockwell C46	DIN 6799	100	98543A117	00000	5728A2	00000
		11 to 15	10	1.25	19.7	1.2	780	Rockwell C46	DIN 6799	50	98543A218	0000	5728A2	00000
		13 to 18	12	1.35	22.7	1.3	1,050	Rockwell C46	DIN 6799	50	98543A219	0000	5728A2	00000
		16 to 24	15	1.55	28.7	1.5	1,750	Rockwell C46	DIN 6799	25	98543A120	00000	5728A2	00000
		20 to 31	19	1.8	36.5	1.75	2,470	Rockwell C46	DIN 6799	10	98543A121	0000	5728A2	00000
		25 to 38	24	2.05	43.5	2	3,370	Rockwell C46	DIN 6799	10	98543A222	00000	5728A2	00000
		32 to 42	30	2.55	51.3	2.5	5,170	Rockwell C46	DIN 6799	5	98543A123	0000	———	0


		1.4122 Stainless Steel



				1.4 to 2	1.2	0.34	2.9	0.3	20	Not Rated	DIN 6799	50	98317A202	0000	———	0


				2 to 2.5	1.5	0.44	3.9	0.4	40	Not Rated	DIN 6799	50	98317A203	0000	———	0
				2.5 to 3	1.9	0.54	4.4	0.5	70	Not Rated	DIN 6799	50	98317A204	0000	———	0
				3 to 4	2.3	0.64	5.9	0.6	110	Rockwell C44	DIN 6799	50	98317A207	0000	57905A41	00000
				4 to 5	3.2	0.64	6.9	0.6	140	Rockwell C44	DIN 6799	50	98317A211	0000	57905A42	00000
				5 to 7	4	0.74	8.85	0.7	210	Rockwell C44	DIN 6799	50	98317A214	00000	57905A43	00000
				6 to 8	5	0.74	10.85	0.7	250	Rockwell C44	DIN 6799	50	98317A217	00000	57905A44	00000
				7 to 9	6	0.74	11.8	0.7	300	Rockwell C44	DIN 6799	25	98317A220	0000	5728A2	00000
				8 to 11	7	0.94	13.8	0.9	400	Rockwell C44	DIN 6799	25	98317A224	00000	5728A2	00000
				9 to 12	8	1.05	15.75	1	560	Rockwell C44	DIN 6799	10	98317A227	0000	5728A2	00000
				10 to 14	9	1.15	18.2	1.1	670	Rockwell C44	DIN 6799	10	98317A231	0000	5728A2	00000


				11 to 15	10	1.25	19.7	1.2	780	Rockwell C44	DIN 6799	5	98317A233	0000	5728A2	00000
				13 to 18	12	1.35	22.7	1.3	1,050	Rockwell C44	DIN 6799	5	98317A237	0000	5728A2	00000
				16 to 24	15	1.55	28.7	1.5	1,750	Rockwell C44	DIN 6799	1	98317A240	0000	5728A2	00000

Push-On Internal Retaining Rings

No groove needed—these internal rings have teeth to grip your bore or housing on their own. They won't handle as much force as rings in grooves, however, so use them in applications with lighter loads. Good for one-time use on unhardened shafts softer than the ring.

Phosphate-Coated Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.

	Ring, mm
For ID, mm	ID	Thk.	Min. Hardness	Min. Installation Dp., mm	Pkg. Qty.		Pkg.







			Phosphate-Coated Carbon Steel

			8	4	0.25	Rockwell C45	2	100	90635A428	00000


			10	5	0.25	Rockwell C45	2	50	90635A124	00000
			12	6	0.25	Rockwell C45	2.5	100	90635A429	0000
			14	8	0.3	Rockwell C45	2.5	100	90635A480	00000
			15	9	0.3	Rockwell C45	2.5	50	90635A214	00000
			16	10	0.3	Rockwell C45	2.5	100	90635A610	00000
			17	11	0.3	Rockwell C45	3	50	90635A236	00000
			18	10.5	0.4	Rockwell C45	3	50	90635A628	0000
			20	11	0.4	Rockwell C45	3.5	50	90635A805	00000
			22	13	0.5	Rockwell C45	3.5	50	90635A857	00000
			24	15	0.5	Rockwell C45	3.5	50	90635A976	00000


			25	16	0.5	Rockwell C45	3.5	25	90635A293	0000
			26	17	0.5	Rockwell C45	3.5	25	90635A294	00000
			30	21	0.5	Rockwell C45	4	25	90635A352	00000
			35	25	0.5	Rockwell C45	4	10	90635A360	0000
			40	30	0.5	Rockwell C45	4	10	90635A415	0000
			50	39	0.5	Rockwell C45	4	10	90635A422	0000

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

Tight-Hold Internal-Tooth Internal Retaining Rings

Internal teeth prevent your ring from tilting, bending, and falling off. When there's side clearance from a chamfered end, for instance, a standard ring may tilt over time and lose its hold. Commonly used to retain shafts in roller drum systems and other heavy duty equipment.

Ring OD is measured with the ring uninstalled.

Phosphate-Coated Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.

	Retaining Rings											Pliers
		For Groove, mm		Ring, mm
	For ID, mm	Dia.	Wd.	OD	Thk.	Thrust Load Cap., lbf	Min. Hardness	Specs. Met.	Pkg. Qty.		Pkg.		Each
Phosphate-Coated Carbon Steel



		16	16.8	1.1	17.3	1	1,230	Rockwell C47	DIN 984	25	97244A111	00000	5449A91	000000


		18	19	1.1	19.5	1	1,460	Rockwell C47	DIN 984	25	97244A112	0000	5449A91	00000
		24	25.2	1.3	25.9	1.2	3,120	Rockwell C47	DIN 984	25	97244A113	0000	5449A91	00000
		26	27.2	1.3	28.5	1.2	3,100	Rockwell C47	DIN 984	25	97244A114	0000	5449A92	00000
		28	29.4	1.3	30.1	1.2	2,980	Rockwell C47	DIN 984	25	97244A115	0000	5449A92	00000
		30	31.4	1.3	32.1	1.2	3,070	Rockwell C47	DIN 984	25	97244A116	00000	5449A92	00000
		32	33.7	1.3	34.4	1.2	3,100	Rockwell C47	DIN 984	25	97244A117	00000	5449A92	00000
		35	37	1.6	37.8	1.5	6,040	Rockwell C47	DIN 984	25	97244A118	00000	5449A92	00000
		36	38	1.6	38.8	1.5	5,930	Rockwell C47	DIN 984	10	97244A119	0000	5449A92	00000
		40	42.5	1.85	43.5	1.75	10,020	Rockwell C47	DIN 984	10	97244A121	00000	5449A92	00000
		44	46.5	1.85	47.5	1.75	9,730	Rockwell C47	DIN 984	10	97244A122	00000	5449A92	00000


		45	47.5	1.85	48.5	1.75	9,680	Rockwell C47	DIN 984	10	97244A123	00000	5449A92	00000
		50	53	2.15	54.2	2	13,660	Rockwell C44	DIN 984	1	97244A124	0000	5449A92	00000
		52	55	2.15	56.2	2	13,530	Rockwell C44	DIN 984	10	97244A125	00000	5449A92	00000
		54	57	2.15	58.2	2	13,530	Rockwell C44	DIN 984	10	97244A126	00000	5449A92	00000
		55	58	2.15	59.2	2	13,550	Rockwell C44	DIN 984	10	97244A127	00000	5449A92	00000
		57	60	2.15	61.2	2	13,660	Rockwell C44	DIN 984	5	97244A128	0000	5449A92	00000
		62	65	2.15	66.2	2	13,690	Rockwell C44	DIN 984	5	97244A129	0000	5449A93	00000
		65	68	2.65	69.2	2.5	27,200	Rockwell C44	DIN 984	5	97244A131	00000	5449A93	00000
		72	75	2.65	76.5	2.5	26,750	Rockwell C44	DIN 984	1	97244A132	0000	5449A93	00000
		80	83.5	2.65	85.5	2.5	26,970	Rockwell C44	DIN 984	5	97244A133	00000	5449A93	00000


		90	93.5	3.15	95.5	3	44,730	Rockwell C44	DIN 984	1	97244A134	00000	5449A93	00000

Side-Mount External Retaining Rings Assortment

Stock up on these rings for when access to the ends of shafts is limited. Push them into grooves with a side-mount retaining ring tool.

Phosphate-Coated Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.

	Includes	Side-Mount Retaining Ring Style	Specs. Met		Each
Phosphate-Coated Carbon Steel



	300	For 3 mm to 20 mm OD	E	DIN 6799	98554A660	000000