IP27 Drive Screws | McMaster-Carr

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47 Products

Steel Torx Plus Socket Head Screws

Fully Threaded

Partially Threaded

The deep, six-lobe socket of these Torx screws withstands even more wear and torque than hex drives. They resist stripping, even after repeated tightening. These screws are a good choice for equipment that requires frequent adjustments, such as jigs. Made of alloy steel, these are our strongest socket head screws.

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.

		Head
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				10-24

				1/2"	5/16"	0.19"	Fully Threaded	Coarse	180,000	100	92610A242	000000


				5/8"	5/16"	0.19"	Fully Threaded	Coarse	180,000	50	92610A243	00000
				3/4"	5/16"	0.19"	Fully Threaded	Coarse	180,000	50	92610A245	00000
				1"	5/16"	0.19"	Fully Threaded	Coarse	180,000	50	92610A247	00000




						10-32

						3/8"	5/16"	0.19"	Fully Threaded	Fine	180,000	50	92610A912	00000


						1/2"	5/16"	0.19"	Fully Threaded	Fine	180,000	100	92610A842	00000
						5/8"	5/16"	0.19"	Fully Threaded	Fine	180,000	100	92610A517	00000
						3/4"	5/16"	0.19"	Fully Threaded	Fine	180,000	50	92610A845	00000
						1"	5/16"	0.19"	Fully Threaded	Fine	180,000	50	92610A523	00000
						1 1/4"	5/16"	0.19"	Partially Threaded	Fine	180,000	50	92610A527	00000
						1 1/2"	5/16"	0.19"	Partially Threaded	Fine	180,000	25	92610A528	00000
						1 3/4"	5/16"	0.19"	Partially Threaded	Fine	180,000	25	92610A531	00000
						2"	5/16"	0.19"	Partially Threaded	Fine	180,000	25	92610A533	00000

Steel Button Head Torx Plus Screws

Our strongest Torx Plus rounded head screws. 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. With larger lobes than Torx drives, Torx Plus withstands even more torque without the driver slipping and stripping the drive.

Length is measured from under the head.

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

		Head
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				1/4"-20

				3/8"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	50	96452A535	000000


				1/2"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	50	96452A537	00000
				3/4"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	50	96452A540	00000
				1"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	50	96452A542	00000




						M6 × 1 mm

						12 mm	10.5 mm	3.3 mm	Fully Threaded	110,000	ASME B18.3.4M	100	96452A721	00000


						16 mm	10.5 mm	3.3 mm	Fully Threaded	110,000	ASME B18.3.4M	100	96452A722	00000
						20 mm	10.5 mm	3.3 mm	Fully Threaded	110,000	ASME B18.3.4M	100	96452A723	00000


						Zinc-Plated Alloy Steel







										1/4"-20

										1/4"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	50	90910A491	00000


										3/8"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A492	00000
										5/8"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A493	00000
										3/4"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A529	00000
										1"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A531	00000
										1 1/4"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A532	00000
										1 1/2"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A533	00000
										1 3/4"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A494	00000
										2"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A534	00000
										2 1/2"	0.437"	0.132"	Fully Threaded	120,000	ASME B18.3, ASTM F835	25	90910A535	00000
										3"	0.437"	0.132"	Partially Threaded	120,000	ASME B18.3, ASTM F835	25	90910A536	00000

Stainless Steel Torx Plus Flat Head Screws

The most corrosion-resistant Torx Plus flat head screws we offer. 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. With larger lobes than Torx drives, Torx Plus withstands even more torque without slipping and stripping the drive.

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







				1/4"-20

				1/2"	82°	Standard	0.477"	0.153"	Fully Threaded	60,000	ASME B18.3	10	92703A405	00000


				3/4"	82°	Standard	0.477"	0.153"	Fully Threaded	60,000	ASME B18.3	10	92703A408	00000
				1"	82°	Standard	0.477"	0.153"	Fully Threaded	60,000	ASME B18.3	10	92703A411	00000
				1 1/4"	82°	Standard	0.477"	0.153"	Fully Threaded	60,000	ASME B18.3	10	92703A414	00000
				1 1/2"	82°	Standard	0.477"	0.153"	Fully Threaded	60,000	ASME B18.3	10	92703A417	00000
				2"	82°	Standard	0.477"	0.153"	Fully Threaded	60,000	ASME B18.3	10	92703A420	00000

T-Handle Key Sets

Keep a selection of top-quality T-handle keys on hand, so you always have the size you need. They're perfect for cranking screws in large machinery, such as engines and CNC mills. A wide handle gives you maximum leverage, and a long shaft reaches into deep pockets. The shaft is permanently bonded to the handle for a secure hold that won't break under high torque. To prevent slipping, these T-handle keys are precision manufactured to tight tolerances for an exact fit. Made of hardened steel, they'll last a lifetime in your tool kit.

Chrome-Plated Steel—The chrome plating resists salt water and chemicals better than other finishes and is less likely to wear off. These T-handle keys have the brightest, shiniest finish we offer to stand out in your tool box.

Cushion Grip—Avoid sore, blistered fingers when completing lengthy projects. These handles have a plastic coating that absorbs pressure for extra comfort.

	Relative Lg.		Each
Torx Plus







	Chrome-Plated Steel

	6	IP10 Torx Plus T-Handle Key (5" O'all Lg.) IP15 Torx Plus T-Handle Key (5" O'all Lg.) IP20 Torx Plus T-Handle Key (5 1/4" O'all Lg.) IP25 Torx Plus T-Handle Key (7 1/4" O'all Lg.) IP27 Torx Plus T-Handle Key (7 1/4" O'all Lg.) IP30 Torx Plus T-Handle Key (7 1/4" O'all Lg.)	Cushion	Standard	2909N11	000000

Torx Plus Bit Sets


Hex Shank	Quick-Change Hex Shank

With larger lobes, the bits in these sets deliver more torque than Torx bits without slipping and stripping the drive. They have a similar profile to Torx but are not recommended for use with standard Torx screws.

Hex Shank—Also known as insert bits, these snap into hand tools. If you want to use them with power tools, attach a bit adapter (not included).

Quick-Change Hex Shank—Lock these bits directly into power tools. They won't wobble as much as bits paired with an adapter, so they are the best choice for high-precision tasks.

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

	Adapters Included	Material	Container Type		Each
For Hand Tools







	1/4" Hex Shank Size

	11	1 Adapter 10 Bits	Torx Plus: IP7, IP8, IP9, IP10, IP15, IP20, IP25, IP27, IP30, IP40 (1" O'all lg.)	2 3/8" Lg. Bit Adapter for Power Tools	Steel	Plastic Case	54305A43	000000


	For Power Tools







					1/4" Quick-Change Hex Shank Size

					10	10 Bits	Torx Plus: IP6, IP7, IP8, IP9, IP10, IP15, IP20, IP25, IP27, IP30 (2" O'all Lg.)	—	Steel	Plastic Caddy	3716A36	00000

L-Key Sets

Plastic

Caddy

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







	Torx Plus

	9	IP8, IP9, IP10, IP15, IP20, IP25, IP27, IP30, IP40	Short	Black Oxide	Plastic Caddy	3726A36	000000

Torx Plus Bits

Hex Shank

Quick-Change Hex

Shank

With larger lobes than Torx bits, these deliver even more torque without slipping and stripping the drive. They have a similar profile to Torx but are not recommended for use with standard Torx screws.

Hex Shank—Also known as insert bits, these snap into hand tools. If you want to use them with power tools, attach a bit adapter (not included).

Quick-Change Hex Shank—Lock these bits directly into power tools. They won't wobble as much as bits paired with an adapter, so they are the best choice for high-precision tasks.

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

		Each
For Hand Tools







	1/4" Hex Shank Size

	IP27	1"	Steel	54305A15	00000


	For Power Tools







					1/4" Quick-Change Hex Shank Size

					IP27	2"	Steel	3716A17	0000

L-Keys

The highest quality L-keys you can buy for tightening and loosening screws. Our 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.

Long—The most common option, these L-keys have a balanced length for everyday reach and torque.

		Length					Each		Package
	Drive Size	Overall	Relative	Long Leg	Short Leg	Finish		Each	Pkg. Qty.		Pkg.
Alloy Steel







				Torx Plus

				IP27	2 7/8"	Short	2 11/16"	15/16"	Black Oxide	3726A19	00000	10	3726A191	000000


				IP27	4 1/2"	Long	4 1/4"	15/16"	Black Oxide	3726A32	0000	10	3726A321	00000