M8 Torx | McMaster-Carr

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70,000 psi to 99,999 psi

100,000 psi to 119,999 psi

120,000 psi to 139,999 psi

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61 Products

Steel Pan Head Torx Screws

Get a grip with less slip. With a deep six-lobe opening, these screws prevent drivers from slipping and stripping drives. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives. 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.

Zinc-Plated Steel with Black Painted Head—Add a decorative touch to your projects without the hassle of painting screws yourself. These screws are a common choice for areas with occasional exposure to moisture.

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







				M8 × 1.25 mm

				10	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	00000


				12	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	0000
				16	16	6	Fully Threaded	60,000	ISO 14583	25	000000000	00000
				20	16	6	Fully Threaded	60,000	ISO 14583	25	000000000	00000
				25	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	0000
				30	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	0000
				35	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	0000


				Zinc-Plated Steel with Black Painted Head







								M8 × 1.25 mm

								16	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	0000


								20	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	00000
								25	16	6	Fully Threaded	60,000	ISO 14583	10	000000000	00000

Steel Button Head Torx Screws

With a deep six-lobe opening, these Torx screws prevent drivers from slipping and stripping drives. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives. The button head looks similar to a pan head, but it's lower and more compact, taking up less space.

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	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M8 × 1.25 mm

				10	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	00000


				12	14	4.4	Fully Threaded	110,000	ISO 7380	25	000000000	00000
				16	14	4.4	Fully Threaded	110,000	ISO 7380	25	000000000	00000
				20	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	0000
				25	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	0000
				30	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	0000
				35	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	0000
				40	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	00000
				45	14	4.4	Fully Threaded	110,000	ISO 7380	5	000000000	00000
				50	14	4.4	Fully Threaded	110,000	ISO 7380	10	000000000	00000
				60	14	4.4	Fully Threaded	110,000	ISO 7380	5	000000000	00000

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







				M8 × 1.25 mm

				16	14	4.4	Fully Threaded	100,000	ISO 7380	25	000000000	00000


				20	14	4.4	Fully Threaded	100,000	ISO 7380	10	000000000	0000
				25	14	4.4	Fully Threaded	100,000	ISO 7380	25	000000000	00000
				30	14	4.4	Fully Threaded	100,000	ISO 7380	5	000000000	0000
				40	14	4.4	Fully Threaded	100,000	ISO 7380	5	000000000	0000

Steel Torx Flat Head Screws

Get a grip with less slip. With a deep six-lobe opening, these screws prevent slipping and stripping drives. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives.

Length is measured from the top of the head.

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

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	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				M8 × 1.25 mm

				12	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	10	000000000	00000


				16	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	10	000000000	0000
				20	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	10	000000000	00000
				25	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	10	000000000	00000
				30	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	10	000000000	00000
				35	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	5	000000000	0000
				45	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	5	000000000	0000
				50	90°	Standard	15.8	4.65	Fully Threaded	ISO 14581	5	000000000	0000

Stainless Steel Torx Flat Head Screws

The most corrosion-resistant Torx flat head screws we offer. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals. With a deep six-lobe opening, these screws prevent slipping and stripping drives. Also known as star drives, they withstand more torque than slotted, Phillips, and hex drives.

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.

High-Temperature High-Strength A286 Stainless Steel—These screws are stronger than 18-8 stainless steel and withstand higher temperatures. They also resist corrosion from chemicals, such as bleach and chlorine, but they won't hold up to salt water as well as 316 stainless steel.

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







				M8 × 1.25 mm

				12	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	10	000000000	00000


				14	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	5	000000000	0000
				16	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	10	000000000	0000
				20	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	10	000000000	0000
				25	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	10	000000000	0000
				30	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	5	000000000	0000
				35	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	10	000000000	0000
				40	90°	Standard	15.8	4.65	Fully Threaded	Not Rated	ISO 14581	5	000000000	0000


				High-Temperature High-Strength A286 Stainless Steel







								M8 × 1.25 mm

								16	90°	Standard	16.5	5	Fully Threaded	130,000	—	1	000000000	00000


								20	90°	Standard	16.5	5	Fully Threaded	130,000	—	1	000000000	00000
								25	90°	Standard	16.5	5	Fully Threaded	130,000	—	1	000000000	00000
								30	90°	Standard	16.5	5	Fully Threaded	130,000	—	1	000000000	00000

Tamper-Resistant Torx Stainless Steel Button Head Screws

Deter unauthorized access in corrosive environments. With a security pin in the drive, you can only turn them with a tamper-resistant Torx driver. Also known as pin-in Torx, the drive has a deep six-lobe opening that withstands high torque without the driver slipping and stripping the drive. Made of stainless steel, these screws won't rust, but they're not as strong as alloy steel. The button head looks similar to a pan head, but it's lower and more compact, taking up less space.

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.

L-Keys—Turn screws by hand for more control and less chance of overtightening compared to power tools.

Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.

	Screws									L-Keys		Power Tool Bits
		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				M8 × 1.25 mm

				12	14	4.39	Fully Threaded	80,000	ASTM F879M, ISO 7380	10	000000000	000000	00000000	00000	0000000	00000


				16	14	4.39	Fully Threaded	80,000	ASTM F879M, ISO 7380	10	000000000	00000	00000000	0000	0000000	0000
				20	14	4.39	Fully Threaded	80,000	ASTM F879M, ISO 7380	10	000000000	00000	00000000	0000	0000000	0000
				25	14	4.39	Fully Threaded	80,000	ASTM F879M, ISO 7380	10	000000000	00000	00000000	0000	0000000	0000
				30	14	4.39	Fully Threaded	80,000	ASTM F879M, ISO 7380	10	000000000	00000	00000000	0000	0000000	0000

Tamper-Resistant Torx Steel Button Head Screws

Our strongest Torx screws for deterring unauthorized access. With a security pin in the drive, you can only turn them with a tamper-resistant Torx driver. Also known as pin-in Torx, the drive has a deep six-lobe opening that withstands high torque without the driver slipping and stripping the drive. Made of alloy steel, they have nearly twice the tensile strength of other screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space.

Length is measured from under the head.

Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

L-Keys—Turn screws by hand for more control and less chance of overtightening compared to power tools.

Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.

	Screws									L-Keys		Power Tool Bits
		Head, mm
	Lg., mm	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.		Each		Each
Black-Oxide Alloy Steel







				M8 × 1.25 mm

				16	14	4.4	Fully Threaded	130,000	ASME B18.3.4M, ISO 7380	25	000000000	000000	00000000	00000	0000000	00000


				20	14	4.4	Fully Threaded	130,000	ASME B18.3.4M, ISO 7380	10	000000000	0000	00000000	0000	0000000	0000

Tamper-Resistant Torx Stainless Steel Flat Head Screws

These screws hold up against corrosion, deter unauthorized access, and prevent your driver from slipping. With a security pin in the drive, you can only turn them with a tamper-resistant Torx driver. Also known as pin-in-Torx, the drive has a deep six-lobe opening that withstands high torque without slipping and stripping the drive. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals, but they're not as strong as alloy steel.

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.

L-Keys—Turn screws by hand for more control and less chance of overtightening compared to power tools.

Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.

	Screws											L-Keys		Power Tool Bits
				Head, mm
	Lg., mm	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				M8 × 1.25 mm

				16	90°	Standard	17.90	5.00	Fully Threaded	80,000	ASTM F879M	10	000000000	00000	00000000	00000	0000000	00000


				20	90°	Standard	17.90	5.00	Fully Threaded	80,000	ASTM F879M	10	000000000	00000	00000000	0000	0000000	0000
				25	90°	Standard	17.90	5.00	Fully Threaded	80,000	ASTM F879M	10	000000000	00000	00000000	0000	0000000	0000
				30	90°	Standard	17.90	5.00	Fully Threaded	80,000	ASTM F879M	10	000000000	00000	00000000	0000	0000000	0000