M16 T Slots | McMaster-Carr

Filter by

System of Measurement

Thread Size

Slot Width

Base Width

Thread Pitch

Threading

Length

Base Height

Material

Overall Height

Head Width

Fastener Head Type

Height

Thread Length

Base Length

Finish

T-Slot Nut Base Width

29 mm

32 mm

Fastener Strength Grade/Class

Class 8.8

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Thread Fit

REACH

DFARS Specialty Metals

RoHS

Export Control Classification Number (ECCN)

Head Height

Specifications Met

40 Products

T-Slot Nuts

Slide into T-slot tracks on machine tool tables to secure clamps and workpieces. These nuts are often paired with setup studs for adjustable fixtures.

Metric

Image of Product. Front orientation. Contains Annotated. T-Slot Nuts.

Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.

18-8 Stainless Steel—Stainless steel nuts have excellent corrosion resistance. They are a good choice for use with stainless steel parts or in EDM applications.

7075 Aluminum—Won’t scratch or wear down aluminum T-slot tracks. These nuts have a steel insert for strength, extending their life.

Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.

Partially Threaded—Partially threaded nuts keep studs from traveling past the bottom of the nut and damaging your table.

DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.

			Base, mm					Fully Threaded		Partially Threaded
	For Slot Wd., mm	Thread Size	Lg.	Wd.	Ht.	Overall Ht., mm	Specs. Met		Each		Each
Black-Oxide Steel



		18	M16 × 2 mm	28	28	10	20	DIN 508	90510A115	00000	———	0


		18	M16 × 2 mm	32	29	11	19	—	90510A219	0000	90974A121	00000
		20	M16 × 2 mm	38	32	14	25	—	90510A221	0000	90974A122	0000
		22	M16 × 2 mm	35	35	14	28	—	90510A322	00000	———	0
		24	M16 × 2 mm	40	40	16	32	—	90510A324	00000	———	0
		28	M16 × 2 mm	44	44	18	36	—	90510A326	00000	———	0


		18-8 Stainless Steel



				18	M16 × 2 mm	28	28	10	20	DIN 508	90510A248	00000	———	0


				7075 Aluminum with Steel Insert



						22	M16 × 2 mm	35	35	14	28	DIN 508	91136A191	00000	———	0

T-Slot Bolts

For quicker setups than a separate T-slot nut and stud, slide these bolts into T-slot tracks on machine tool tables.

Machined Neck

Flat surfaces on the neck fit securely in the T-slot so the bolt doesn't wobble.

Black-Oxide Steel—Our strongest T-slot bolts. The dark, matte coating withstands occasional moisture.

DIN 787—Bolts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.

				Head, mm						Partially Threaded
	Lg., mm	Thread Lg., mm	Thread Size	Lg.	Wd.	Ht.	Min. Tensile Strength, psi	Fastener Strength Grade/Class	Specs. Met		Each
Steel







				For 16 mm Wide Slots

				50	38	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A291	000000


				60	38	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A292	00000
				63	45	M16 × 2 mm	25	25	9	110,000	Class 8.8	DIN 787	92770A471	00000
				70	38	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A293	00000
				80	38	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A294	00000
				80	55	M16 × 2 mm	25	25	9	110,000	Class 8.8	DIN 787	92770A472	00000
				90	38	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A295	00000
				100	38	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A296	00000
				100	65	M16 × 2 mm	25	25	9	110,000	Class 8.8	DIN 787	92770A473	00000
				125	85	M16 × 2 mm	25	25	9	110,000	Class 8.8	DIN 787	92770A475	00000
				150	44	M16 × 2 mm	30	16	10.5	120,000	Class 8.8	DIN 186	91523A297	00000


				160	100	M16 × 2 mm	25	25	9	110,000	Class 8.8	DIN 787	92770A476	00000




						For 18 mm Wide Slots

						80	55	M16 × 2 mm	28	28	10	110,000	Class 8.8	DIN 787	92770A482	00000


						125	85	M16 × 2 mm	28	28	10	110,000	Class 8.8	DIN 787	92770A484	00000


						Black-Oxide Steel







										For 18 mm Wide Slots

										63	45	M16 × 2 mm	28	28	10	110,000	Class 8.8	DIN 787	92770A316	00000


										100	63	M16 × 2 mm	28	28	10	110,000	Class 8.8	DIN 787	92770A317	00000
										160	100	M16 × 2 mm	28	28	10	110,000	Class 8.8	DIN 787	92770A318	00000

Setup Clamp and T-Slot Fastener Kits

Metal Wall-Mount Rack

Get everything needed for basic workholding on a machine table. Select a kit that matches your table's slot width. Each kit includes studs, setup clamps, step blocks, T-slot nuts, flange nuts, coupling nuts, and a T-slot cleaning tool.

				Step Block, mm
	For Slot Wd., mm	No. of Pieces	Includes	Ht. Range	Wd.	T-Slot Nut Base Wd., mm	Material	Container Type		Each
M16 × 2 mm



		18	53	4 Coupling Nuts 3 Step Block Pairs 6 Flange Nuts 6 Step Setup Clamps (2 each in 64 mm, 102 mm, and 152 mm lengths) 6 T-Slot Nuts 24 Studs (4 each in 80 mm, 110 mm, 150 mm, 175 mm, 200 mm, and 250 mm lengths) T-Slot Cleaner	19 to 152	25	29	Steel	Metal Wall-Mount Rack	8957A82	0000000

Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck with industry standard 1.5 mm × 60° serrations or wider 3 mm × 60° serrations.

Jaw Nuts with Metric Threads

Image of Product. Front orientation. Contains Annotated. Lathe Chuck Jaw Nuts.

M16 Threads—Jaw nuts with M6, M8, M10, M12, M16, and M20 threads fit most chucks made by Kitagawa, LMC, Samchully, Seoam, Auto Strong, and other brands.

			Base
For Lathe Chuck Dia.	For Slot Wd.	Thread Size	Ht.	Lg.	Wd.	Overall Ht.	For Serration Size	Mounting Hole Ctr.-to-Ctr.	Material		Each
12"	0.827"	M16 × 2 mm	29/64"	2 9/16"	1 5/32"	1 3/32"	1.5 mm × 60°	1.181"	Steel	3228N14	000000

Strong-Hold T-Slot Nuts

After sliding the nut into a T-slot track, tighten the set screw to keep it in place. Use these nuts to secure clamps and workpieces in a machine table.

Metric

Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.

Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.

			Base, mm				Drive			Fully Threaded
	For Slot Wd., mm	Thread Size	Lg.	Wd.	Ht.	Overall Ht., mm	Size, mm	Style	Includes		Each
Black-Oxide Steel



		20	M16 × 2 mm	39.2	31.8	12.6	31.8	6	Hex	Set Screw	84865A805	000000


		22	M16 × 2 mm	44.3	34.9	12.5	41.3	6	Hex	Set Screw	84865A814	00000

Drop-In T-Slot Nuts

Mount clamps and other fixtures to machine tool tables anywhere along the length of your T-slot track. These nuts install from the top and secure with a quarter turn, so you don’t have to slide them down the track’s length. They’re often paired with setup studs for adjustable fixtures. Also known as quarter-turn T-slot nuts.

Metric

Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.

Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.

			Base, mm				Fully Threaded
	For Slot Wd., mm	Thread Size	Lg.	Wd.	Ht.	Overall Ht., mm		Each
Black-Oxide Steel



		18	M16 × 2 mm	28	17.6	10	20	90799A216	000000


		20	M16 × 2 mm	39	19.7	12	24	90799A614	00000

Drop-In T-Slot Bolts

Install these bolts at any point along a T-slot track. They drop in from the top, so you don’t have to slide them down the track’s length. These bolts are especially useful when you need to add clamping points to an existing fixture. They’re more versatile than other T-slot bolts that only install at the end of a track. But because drop-in bolts make less contact, they have lower load capacities.

Machined Neck


Top View

Flat surfaces on the neck fit securely in the T-slot so the bolt doesn't wobble.

				Head, mm					Partially Threaded
	Lg., mm	Thread Lg., mm	Thread Size	Lg.	Wd.	Ht.	Min. Tensile Strength, psi	Fastener Strength Grade/Class		Each
Steel







				For 18 mm Wide Slots

				63	45	M16 × 2 mm	28	18	10	110,000	Class 8.8	95059A211	000000


				100	65	M16 × 2 mm	28	18	10	110,000	Class 8.8	95059A212	00000
				160	100	M16 × 2 mm	28	18	10	110,000	Class 8.8	95059A213	00000

Extra-Long T-Slot Nuts

T-Slot Nut and Extra-Long

T-Slot Nut Shown Installed

Within Cross-Slot

Image of Product. Front orientation. Contains Annotated. T-Slot Nuts. Extra-Long T-Slot Nuts.

With an extra-long base, these nuts carry heavier loads and grip T-slot tracks more securely than standard nuts. Use them to anchor clamps and workpieces to machine tool tables. They’re often paired with setup studs for adjustable fixtures.

Metric

Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.

DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.

			Base, mm					Fully Threaded
	For Slot Wd., mm	Thread Size	Lg.	Wd.	Ht.	Overall Ht., mm	Specs. Met		Each
Steel



		18	M16 × 2 mm	56	28	10	20	DIN 508	90894A191	000000

Spring-Loaded T-Slot Nuts

Prevent clamps and other fixtures from accidentally shifting along your machine tool table. These nuts have a spring-loaded ball to hold them firmly inside T-slot tracks but still slide if you need to reposition them. They’re often paired with setup studs for adjustable fixtures.

Metric

Black-Oxide Steel—Create a finished look with a dark, matte coating. These nuts offer minimal corrosion resistance, so they're best for dry environments.

Fully Threaded—Fully threaded nuts allow a stud to extend beyond the bottom of the nut.

DIN 508—Nuts meet DIN dimensional and material requirements. Slide them into DIN 650 T-slots.

			Base, mm					Fully Threaded
	For Slot Wd., mm	Thread Size	Lg.	Wd.	Ht.	Overall Ht., mm	Specs. Met		Each
Black-Oxide Steel



		18	M16 × 2 mm	28	28	10	20	DIN 508	97734A114	000000

T-Slot Fastener and Setup Stud Kits

For mounting items to your machine table, these kits contain the full system of necessary components. Choose the kit with slot width matching that of your table.

Each kit includes T-slot nuts, setup studs, flange nuts, coupling nuts, and a T-slot cleaning tool.

				T-Slot Nut				Setup Stud
	For Slot Wd., mm	No. of Pieces	Includes	Threading	Base Ht., mm	Base Wd., mm	Overall Ht., mm	Threading	Min. Tensile Strength, psi	Material		Each
M16 × 2 mm



		18	37	4 T-Slot Nuts 4 Setup Studs each in 80 mm, 110 mm, 150 mm, 175 mm, 200 mm, and 250 mm Lengths 4 Flange Nuts 4 Coupling Nuts 1 T-Slot Cleaner	Partially Threaded	11	29	19	Threaded on Both Ends	125,000	Black-Oxide Steel	3396A46	0000000


		20	37	4 T-Slot Nuts 4 Setup Studs each in 80 mm, 110 mm, 150 mm, 175 mm, 200 mm, and 250 mm Lengths 4 Flange Nuts 4 Coupling Nuts 1 T-Slot Cleaner	Partially Threaded	14	32	25	Threaded on Both Ends	125,000	Black-Oxide Steel	3396A39	000000