0.9 mm Drive Screws | McMaster-Carr

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67 Products

Stainless Steel Button Head Hex-Drive Screws

These button head screws won't corrode from moisture and chemicals, but they aren't as strong as alloy steel screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.

Length is measured from under the head.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M1.6 × 0.35 mm

				4	2.9	0.8	Fully Threaded	70,000	50	92095A322	00000


				5	2.9	0.8	Fully Threaded	70,000	50	92095A323	0000

Steel Cup-Tip Set Screws

Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

	Specs. Met	Pkg. Qty.		Pkg.
Alloy Steel







	M2 × 0.4 mm

	2	0.9	Rockwell C45	DIN 916, ISO 4029	10	91390A601	00000


	2.5	0.9	Rockwell C45	DIN 916, ISO 4029	25	91390A701	0000
	3	0.9	Rockwell C45	DIN 916, ISO 4029	25	91390A090	00000
	4	0.9	Rockwell C45	DIN 916, ISO 4029	50	91390A091	00000
	5	0.9	Rockwell C45	DIN 916, ISO 4029	50	91390A092	00000
	6	0.9	Rockwell C45	DIN 916, ISO 4029	50	91390A093	00000
	8	0.9	Rockwell C45	DIN 916, ISO 4029	50	91390A002	00000
	10	0.9	Rockwell C45	DIN 916, ISO 4029	25	91390A005	00000
	12	0.9	Rockwell C45	DIN 916, ISO 4029	10	91390A602	0000
	16	0.9	Rockwell C45	DIN 916, ISO 4029	10	91390A603	00000

Stainless Steel Cup-Tip Set Screws

These corrosion-resistant cup-tip screws grip parts tightly. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	M2 × 0.4 mm

	2	0.9	Not Rated	DIN 916, ISO 4029	25	92015A011	000000


	2.5	0.9	Not Rated	DIN 916, ISO 4029	25	92015A207	0000
	3	0.9	Not Rated	DIN 916, ISO 4029	25	92015A090	0000
	4	0.9	Not Rated	DIN 916, ISO 4029	25	92015A091	0000
	5	0.9	Not Rated	DIN 916, ISO 4029	25	92015A092	0000
	6	0.9	Not Rated	DIN 916, ISO 4029	25	92015A093	00000
	8	0.9	Not Rated	DIN 916, ISO 4029	25	92015A194	00000
	10	0.9	Not Rated	DIN 916, ISO 4029	10	92015A195	0000
	12	0.9	Not Rated	DIN 916, ISO 4029	10	92015A701	0000


	Highly Corrosion-Resistant 316 Stainless Steel







					M2 × 0.4 mm

					3	0.9	Rockwell B80	DIN 916, ISO 4029	10	92029A085	00000


					4	0.9	Rockwell B80	DIN 916, ISO 4029	10	92029A087	00000
					5	0.9	Rockwell B80	DIN 916, ISO 4029	10	92029A089	00000
					6	0.9	Rockwell B80	DIN 916, ISO 4029	10	92029A091	00000

Stainless Steel Flat-Tip Set Screws

These corrosion-resistant screws spread out holding power and protect surfaces from damage. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. Unlike cup and cone tips, the flat tip distributes pressure evenly, reducing marring but not holding as tightly. They're a good choice for repositioning parts frequently on jigs, fixtures, and other applications where the tip presses against a flat surface.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

Black-Oxide 18-8 Stainless Steel—These screws have a dark matte finish. They won't rust in wet and outdoor environments, but they don't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	M2 × 0.4 mm

	2	0.9	Not Rated	DIN 913, ISO 4026	25	92605A911	00000


	2.5	0.9	Not Rated	DIN 913, ISO 4026	50	92605A712	00000
	3	0.9	Rockwell B80	DIN 913, ISO 4026	50	92605A042	00000
	4	0.9	Rockwell B80	DIN 913, ISO 4026	25	92605A043	0000
	5	0.9	Rockwell B80	DIN 913, ISO 4026	25	92605A044	0000
	6	0.9	Not Rated	DIN 913, ISO 4026	25	92605A047	00000
	8	0.9	Not Rated	DIN 913, ISO 4026	25	92605A912	0000
	10	0.9	Not Rated	DIN 913, ISO 4026	25	92605A713	00000
	12	0.9	Not Rated	DIN 913, ISO 4026	25	92605A714	00000


	Black-Oxide 18-8 Stainless Steel







					M2 × 0.4 mm

					4	0.9	Not Rated	DIN 913, ISO 4026	25	92605A641	00000


					6	0.9	Not Rated	DIN 913, ISO 4026	25	92605A643	00000
					8	0.9	Not Rated	DIN 913, ISO 4026	25	92605A644	00000


					Highly Corrosion-Resistant 316 Stainless Steel







									M2 × 0.4 mm

									3	0.9	Rockwell B80	DIN 913, ISO 4026	5	92605A501	00000


									4	0.9	Rockwell B80	DIN 913, ISO 4026	5	92605A502	00000

Nylon-Tip Stainless Steel Set Screws

These corrosion-resistant set screws have a soft nylon tip to secure delicate surfaces, such as glass, plastic, or polished metals. However, if you need a stronger tip, opt for screws with brass or silver tips. The stainless steel body won't rust, but it's not as strong as alloy steel.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

		Tip
	Lg., mm	Dia., mm	Lg., mm	Temp., ° F	Color	Drive Size, mm	Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M2 × 0.4 mm

				3	0.8	0.8	-50 to 250	Green	0.9	Rockwell B80	ASME B18.3.6M	1	93285A009	00000


				4	0.8	0.8	-50 to 250	Green	0.9	Rockwell B80	ASME B18.3.6M	1	93285A014	0000
				5	0.8	0.8	-50 to 250	Green	0.9	Rockwell B80	ASME B18.3.6M	1	93285A018	0000
				6	0.8	0.8	-50 to 250	Green	0.9	Rockwell B80	ASME B18.3.6M	1	93285A023	0000

Stainless Steel Cone-Tip Set Screws

Our most corrosion-resistant cone-tip set screws. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. The pointed tip bites down on surfaces but may scratch or gouge. They're a good choice to permanently locate parts that you don't intend to move.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

	Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	M2 × 0.4 mm

	3	90°	0.9	Rockwell B80	DIN 914, ISO 4027	25	91217A011	000000


	4	90°	0.9	Rockwell B80	DIN 914, ISO 4027	25	91217A012	0000
	5	90°	0.9	Rockwell B80	DIN 914, ISO 4027	25	91217A013	0000
	10	90°	0.9	Rockwell B80	DIN 914, ISO 4027	25	91217A018	00000

Steel Flat-Tip Set Screws

Spread out holding power and protect surfaces from damage. Unlike cup and cone tip screws, the flat tip on these distributes pressure evenly, reducing marring but not holding as tightly. They're a good choice for repositioning parts frequently on jigs, fixtures, and other applications where the tip presses against a flat surface. Made of alloy steel, these screws are strong enough to hold components without wearing down.

	Specs. Met	Pkg. Qty.		Pkg.
Alloy Steel







	M2 × 0.4 mm

	2	0.9	Rockwell C45	DIN 913, ISO 4026	25	93245A411	000000


	2.5	0.9	Rockwell C45	DIN 913, ISO 4026	100	93245A625	00000
	3	0.9	Rockwell C45	DIN 913, ISO 4026	50	93245A626	00000
	4	0.9	Rockwell C45	DIN 913, ISO 4026	50	93245A627	00000
	5	0.9	Rockwell C45	DIN 913, ISO 4026	50	93245A628	00000
	6	0.9	Rockwell C45	DIN 913, ISO 4026	50	93245A629	00000
	8	0.9	Rockwell C45	DIN 913, ISO 4026	50	93245A630	00000
	10	0.9	Rockwell C45	DIN 913, ISO 4026	25	93245A412	00000
	12	0.9	Rockwell C45	DIN 913, ISO 4026	10	93245A413	0000

Thread-Locking Stainless Steel Cup-Tip Set Screws

These corrosion-resistant screws give you added protection against mild vibration with threadlocker bonded to the threads. Plus, they save you the time and mess of adding it yourself. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.

			Threadlocker
	Lg., mm	Drive Size, mm	Type	Temp.	Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M2 × 0.4 mm

				3	0.9	Nylon Patch	-50° F to 250° F	Rockwell B80	DIN 916, ISO 4029	10	90251A151	000000


				4	0.9	Nylon Patch	-50° F to 250° F	Rockwell B80	DIN 916, ISO 4029	10	90251A152	00000
				5	0.9	Nylon Patch	-50° F to 250° F	Rockwell B80	DIN 916, ISO 4029	10	90251A301	00000
				6	0.9	Nylon Patch	-50° F to 250° F	Rockwell B80	DIN 916, ISO 4029	10	90251A302	00000

Static-Control Precise-Control Screwdriver Sets

Protect delicate microelectronics from harmful static shocks. Also known as ESD-safe screwdrivers, these meet IEC requirements to drain static away from your workpiece before it causes damage. Precise-control screwdrivers allow for nimble, fine-tuned adjustments. Press the end of the handle with your palm to apply constant pressure while turning the body of the screwdriver with your fingertips.

Warning: These screwdrivers conduct electricity. Do not use them near active power sources.

Chrome-Plated Steel—The bright, shiny plating resists salt water and chemicals better than other finishes and is less likely to wear off.

Plain Grip—Made of hard plastic for durability.

	Includes	Material	Grip Style	Container Type	Static Control Rating	Surface Resistivity	Specs. Met		Each
Hex



	7	0.7 mm Hex Screwdriver—4 23/32" O'all Lg. 0.9 mm Hex Screwdriver—4 23/32" O'all Lg. 1.3 mm Hex Screwdriver—4 23/32" O'all Lg. 1.5 mm Hex Screwdriver—5 23/32" O'all Lg. 2 mm Hex Screwdriver—5 23/32" O'all Lg. 2.5 mm Hex Screwdriver—6 11/16" O'all Lg. 3 mm Hex Screwdriver—6 11/16" O'all Lg.	Chrome-Plated Steel	Plain	Plastic Roll-Up Pouch	Static Dissipative	1× 10^6Ω⋅cm to 1× 10^9Ω⋅cm	IEC 61340-5-1	7440A93	000000


	Hex, Phillips, Slotted, Torx



			50	5 3/4" Lg. Chip Lifter Hex Screwdrivers: 0.7 mm, 0.9 mm, 1.3 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm Hex Screwdrivers: 1/16", 3/32", 7/64", 1/8" Nutdrivers: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 1/8", 5/32", 3/16", 1/4" Phillips Screwdrivers: No. 000, No. 00, No. 0, No. 1 Slotted Screwdrivers: 0.031", 0.039", 0.047", 0.059", 0.079", 0.098", 0.118", 0.138", 0.157" Torx Screwdrivers: T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T15, T20	Chrome-Plated Steel	Plain	Metal Stand	Static Dissipative	1× 10^6Ω⋅cm to 1× 10^9Ω⋅cm	IEC 61340-5-1	7440A95	000000

Thread-Locking Steel Cup-Tip Set Screws

These screws grip parts tightly and give you extra protection against mild vibration. They have a nylon-patch threadlocker bonded to the threads, saving you the time and mess of adding it yourself. Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.

			Threadlocker
	Lg., mm	Drive Size, mm	Type	Temp.	Hardness	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				M2 × 0.4 mm

				3	0.9	Nylon Patch	-50° F to 250° F	Rockwell C45	DIN 916, ISO 4029	10	91385A201	000000


				4	0.9	Nylon Patch	-50° F to 250° F	Rockwell C45	DIN 916, ISO 4029	10	91385A202	00000
				5	0.9	Nylon Patch	-50° F to 250° F	Rockwell C45	DIN 916, ISO 4029	10	91385A401	00000
				6	0.9	Nylon Patch	-50° F to 250° F	Rockwell C45	DIN 916, ISO 4029	10	91385A402	00000

L-Key Sets

With

Plastic

Pouch

Keep the most common L-key sizes in one portable set so the right size is always ready. These L-keys are precision manufactured to tight tolerances for an exact fit.

Alloy Steel—These L-keys handle high torque without bending or breaking, so they’ll last a lifetime.

Short—A short long leg fits into tight spaces where you have less room to swing, making these ideal for confined areas.

	Finish	Container Type		Each
Alloy Steel







	Hex

	12	0.7 mm Hex L-Key (1 1/4" O'all Lg.) 0.9 mm Hex L-Key (1 5/16" O'all Lg.) 1.3 mm Hex L-Key (1 3/4" O'all Lg.) 1.5 mm Hex L-Key (1 13/16" O'all Lg.) 2 mm Hex L-Key (2 1/16" O'all Lg.) 2.5 mm Hex L-Key (2 1/4" O'all Lg.) 3 mm Hex L-Key (2 9/16" O'all Lg.) 4 mm Hex L-Key (2 7/8" O'all Lg.) 5 mm Hex L-Key (3 5/16" O'all Lg.) 6 mm Hex L-Key (3 3/4" O'all Lg.) 8 mm Hex L-Key (4 3/16" O'all Lg.) 10 mm Hex L-Key (4 11/16" O'all Lg.)	Short	Zinc Plated	Plastic Pouch	7158A121	000000