M2.6 Fasteners | McMaster-Carr

Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.

Length is measured from under the head.

Black-Oxide Alloy Steel—Best for dry environments since moisture will cause these screws to rust. They have a dark, matte appearance.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Fastener Strength Grade/Class	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				M2.6 × 0.45 mm

				4	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A071	000000


				5	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	10	91290A376	0000
				6	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	25	91290A073	00000
				8	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	50	91290A031	00000
				10	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	50	91290A033	00000
				12	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	50	91290A035	00000
				16	5	2.6	Fully Threaded	Coarse	170,000	Class 12.9	10	91290A075	00000

Stainless Steel Phillips Flat Head Screws

These screws are made of stainless steel, so they won't rust or corrode when exposed to moisture and chemicals. The Phillips drive has a cross-shaped opening in which a driver fits snugly for easy alignment. With four contact points, they withstand more torque than slotted drives, but drivers slip when you apply too much force.

Length is measured from the top of 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.

Standard Profile—Standard-profile heads are the most common choice for flat head screws.

				Head, mm
	Lg., mm	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				M2.6 × 0.45 mm

				5	90°	Standard	4.7	1.5	Fully Threaded	70,000 psi	100	92010A774	000000


				6	90°	Standard	4.7	1.5	Fully Threaded	Not Rated	100	92010A775	00000
				8	90°	Standard	4.7	1.5	Fully Threaded	Not Rated	100	92010A776	00000
				10	90°	Standard	4.7	1.5	Fully Threaded	70,000 psi	100	92010A777	00000

Steel Pan Head Phillips Screws

Our most popular steel pan head screws. They have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads. The Phillips drive easily aligns with drivers and withstands more torque than slotted drives, but drivers slip when you apply too much force.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M2.6 × 0.45 mm

				4	5	2.1	Fully Threaded	60,000	100	92005A731	00000


				6	5	2.1	Fully Threaded	60,000	50	92005A743	0000
				12	5	2.1	Fully Threaded	60,000	100	92005A732	00000
				16	5	2.1	Fully Threaded	60,000	50	92005A744	0000

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







				M2.6 × 0.45 mm

				5	4.92	1.43	Fully Threaded	100,000	100	90910A950	000000


				6	4.92	1.43	Fully Threaded	100,000	100	90910A951	00000
				8	4.92	1.43	Fully Threaded	100,000	100	90910A952	00000

JIS Steel Pan Head Screws

These screws are manufactured to meet Japanese Industrial Standards. Similar in appearance to Phillips, the JIS drive has a shallower opening with sharper angles and straighter internal walls. This lets them withstand more torque while preventing the driver from slipping and damaging the drive. Tighten them only with a JIS driver to avoid stripping the drive. Some JIS screws are marked with a dot near the drive for quick identification. Pan heads have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M2.6 × 0.45 mm

				4	4.5	1.7	Fully Threaded	Not Rated	25	94387A524	00000


				6	4.5	1.7	Fully Threaded	Not Rated	25	94387A525	0000
				8	4.5	1.7	Fully Threaded	Not Rated	25	94387A526	0000
				10	4.5	1.7	Fully Threaded	Not Rated	25	94387A527	0000
				12	4.5	1.7	Fully Threaded	Not Rated	25	94387A528	0000

Steel Pan Head Slotted Screws

These pan head screws have the simplest drive style. With only two contact points, the slotted drive can't withstand much torque, so it's best to hand-tighten them. They have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads.

Length is measured from under the head.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M2.6 × 0.45 mm

				4	5	1.5	Fully Threaded	60,000	100	90353A110	000000


				5	5	1.5	Fully Threaded	60,000	100	90353A111	0000
				6	5	1.5	Fully Threaded	60,000	100	90353A112	0000
				8	5	1.5	Fully Threaded	60,000	100	90353A113	0000
				10	5	1.5	Fully Threaded	60,000	100	90353A114	0000
				12	5	1.5	Fully Threaded	60,000	100	90353A115	0000
				25	5	1.5	Fully Threaded	60,000	100	90353A120	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.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

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







				M2.6 × 0.45 mm

				8	4.6	1.4	Fully Threaded	Not Rated	50	92095A148	000000

Stainless Steel Socket Head Screws

Fully Threaded

These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.

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 screws can.

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







				M2.6 × 0.45 mm

				4	4.7	2.6	Fully Threaded	Coarse	70,000	—	5	91292A338	000000


				5	4.7	2.6	Fully Threaded	Coarse	70,000	—	5	91292A339	00000
				6	4.7	2.6	Fully Threaded	Coarse	70,000	—	5	91292A340	00000
				8	4.7	2.6	Fully Threaded	Coarse	70,000	—	5	91292A341	00000
				10	4.7	2.6	Fully Threaded	Coarse	70,000	—	5	91292A342	00000
				16	4.7	2.6	Fully Threaded	Coarse	70,000	Material Certificate	5	91292A345	00000

Hex Nuts

The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.

Low-Strength Steel

Rated Grade 2, Class 6, or lower, these nuts are about half as strong as medium-strength nuts. They are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.

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

Steel—Best for dry environments since moisture will cause these nuts to rust.

	Wd., mm	Ht., mm	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel



	M2.6 × 0.45 mm	5	2	DIN 934	100	90591A114	00000


	Steel



			M2.6 × 0.45 mm	5	2	DIN 934	100	90592A008	0000

Brass

Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.

	Wd., mm	Ht., mm	Specs. Met	Pkg. Qty.		Pkg.
Brass



	M2.6 × 0.45 mm	5	2	DIN 934	50	90690A026	00000