M2.2 Bolts | McMaster-Carr

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7 Products

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Stainless Steel Button Head Torx Screws

Our most corrosion-resistant button head Torx screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With a deep six-lobe opening, the Torx drive prevents your driver from slipping and stripping the drive. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives.

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







				M2.2 × 0.45 mm

				5	3.8	1.1	Fully Threaded	100,000	100	90910A930	000000


				6	3.8	1.1	Fully Threaded	100,000	100	90910A931	00000
				8	3.8	1.1	Fully Threaded	100,000	100	90910A932	00000

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	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M2.2 × 0.45 mm

				6	3.8	1.4	Fully Threaded	Not Rated	50	92095A117	000000

Stainless Steel Hex-Drive Precision Shoulder Screws

Our go-to choice for assemblies that require smooth, accurate movement. These screws are engineered for tight tolerances, with shoulder diameters twice as precise as those on standard-fit screws. They're made of stainless steel, so they won't rust, though they're not as strong as their alloy steel counterparts.

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

				Head, mm				Certificate			Each
	Shoulder Lg., mm	Thread Size	Thread Lg., mm	Dia.	Ht.	Drive Size, mm	Tensile Strength, psi	Type	Form		1-4	5-Up
18-8 Stainless Steel







				3 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

				5	M2.2 × 0.45 mm	4	5	2	2	70,000	—	—	90278A722	000000	00000


				6	M2.2 × 0.45 mm	4	5	2	2	70,000	—	—	90278A723	00000	0000
				8	M2.2 × 0.45 mm	4	5	2	2	70,000	Material Certificate	Digital	90278A724	00000	00000