No. 6 Drive Screws | McMaster-Carr

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45 Products

Bit Sets

Hex Shank

Have a range of bits ready to turn the most common screw styles and sizes.

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).

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

	Adapters Included	Drive Tools Included	Material	Container Type		Each
For Hand Tools







	1/4" Hex Shank Size

	38	1 Adapter 1 Drive Tool 36 Bits	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 (1" O'all Lg.) Phillips: No. 1 (1" O'all Lg.) - 1 ea. Phillips: No. 2 (1" O'all Lg.) - 2 ea. Pozidriv®: No. 0, No. 1, No. 2, No. 3 (1" O'all Lg.) Slotted: 5/16" Square: No. 1, No. 2, No. 3 (1" O'all Lg.) Tamper-Resistant Hex: 5/64", 3/32", 7/64", 1/8", 9/64", 5/32" (1" O'all Lg.) Tamper-Resistant Torx: T8, T10, T15, T20, T25, T27, T30, T40 (1" O'all Lg.) Torq-Set®: No. 6, No. 8, No. 10 (1" O'all Lg.) Tri-Wing®: No. 1, No. 2, No. 3, No. 4 (1" O'all Lg.)	1/4" Hex Drive Adapter	3 1/2" Lg. Ratchet Wrench	Steel	Plastic Case	5996A4	000000


	100	4 Adapters 96 Bits	Drilled Spanner: No. 4, No. 6, No. 8, No. 10, No. 12, 1/4" (1" O'all Lg.)—1 ea. Hex (Inch): 0.050", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (1" O'all Lg.)—1 ea. Hex (Metric): 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm (1" O'all Lg.)—1 ea. Phillips: No. 0 (1" O'all Lg.)—1 ea. Phillips: No. 1, No. 3 (1" O'all Lg.)—2 ea. Phillips: No. 2 (1" O'all Lg.)—4 ea. Pozidriv®: No. 1, No. 2, No. 3 (1" O'all Lg.)—1 ea. Screw-In Hook Driver Bit—1 ea. Slotted: 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 3/8" (1" O'all Lg.)—1 ea. Square: No. 0, No. 1, No. 2, No. 3, No. 4 (1" O'all Lg.)—1 ea. Tamper-Resistant Hex (Inch): 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16" (1" O'all Lg.)—1 ea. Tamper-Resistant Hex (Metric): 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm (1" O'all Lg.)—1 ea. Tamper-Resistant Torx: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 (1" O'all Lg.)—1 ea. Torx: T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40, T45, T50, T55 (1" O'all Lg.)—1 ea.	1/4" Male Square Drive × 1/4" Hex Shank Adapter (1" O'all Lg.) 1/4" Male Square Drive × 1/4" Hex Shank Adapter (2" O'all Lg.) 2 1/2" Lg. Bit Adapter for Power Tools Bit Adapter for Square Drive Tools	—	Steel	Plastic Case	2599N1	00000

Tamper-Resistant Drilled Spanner Stainless Steel Flat Head Screws

Image of Product. Front orientation. Contains MultipleImages. Flat Head Screws. Tamper-Resistant Drilled Spanner Stainless Steel Flat Head Screws.

The unique two-hole design deters tampering. These screws only turn with a drilled spanner driver, making them hard to force with other tools. Also known as pig-nose drives, their two contact points won't withstand much torque, so they're good for light duty tasks. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals.

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.

Undercut Profile—About a third thinner than standard heads, the undercut profile fits into shallow holes in thin material. The thin head also has more threading on the shaft, so they're often used to keep short screws from coming loose.

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







				6-32

				1/4"	82°	Undercut	0.262"	0.059"	Fully Threaded	70,000	ASME B18.6.3	25	94063A312	00000	52775A21	00000	7230A56	00000


				5/16"	82°	Standard	0.279"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A313	0000	52775A21	0000	7230A56	0000
				3/8"	82°	Standard	0.262"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A146	0000	52775A21	0000	7230A56	0000
				1/2"	82°	Standard	0.262"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A148	0000	52775A21	0000	7230A56	0000
				5/8"	82°	Standard	0.279"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A314	00000	52775A21	0000	7230A56	0000
				3/4"	82°	Standard	0.262"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A151	00000	52775A21	0000	7230A56	0000
				1"	82°	Standard	0.262"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A153	00000	52775A21	0000	7230A56	0000
				1 1/2"	82°	Standard	0.262"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A157	00000	52775A21	0000	7230A56	0000
				2"	82°	Standard	0.262"	0.083"	Fully Threaded	70,000	ASME B18.6.3	25	94063A159	00000	52775A21	0000	7230A56	0000

Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Good luck trying to force off these screws. The tri-groove drive has a sloped shape with three notches that makes it nearly impossible to grip without a tri-groove driver. They're often found on electrical boxes, machine control panels, and critical equipment where unauthorized access is a concern.

Length is measured from under the head.

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

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

	Screws								Power Tool Bits
		Head
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Pkg. Qty.		Pkg.		Each
Zinc-Plated Steel







				6-32

				3/8"	0.26"	0.12"	Fully Threaded	80,000	50	90058A146	000000	7309A22	000000


				1/2"	0.26"	0.12"	Fully Threaded	80,000	50	90058A148	00000	7309A22	00000
				3/4"	0.26"	0.12"	Fully Threaded	80,000	50	90058A151	00000	7309A22	00000




						8-32

						3/8"	0.28"	0.148"	Fully Threaded	80,000	50	90058A192	00000	7309A22	00000


						1/2"	0.28"	0.148"	Fully Threaded	80,000	50	90058A194	00000	7309A22	00000
						3/4"	0.28"	0.148"	Fully Threaded	80,000	50	90058A197	00000	7309A22	00000
						1"	0.28"	0.148"	Fully Threaded	80,000	50	90058A199	00000	7309A22	00000
						1 1/4"	0.28"	0.148"	Fully Threaded	80,000	50	90058A201	00000	7309A22	00000
						1 1/2"	0.28"	0.148"	Fully Threaded	80,000	50	90058A203	00000	7309A22	00000

Tamper-Resistant Drilled Spanner Stainless Steel Pan Head Screws

The unique two-hole design inhibits tampering. These screws only turn with a drilled spanner driver, making them hard to force with other tools. Also known as pig-nose drives, their two contact points won't withstand much torque, so they're good for light duty tasks. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals. 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.

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.

Screwdriver Bits—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									Screwdriver Bits		Power Tool Bits
		Head
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				6-32

				3/16"	0.27"	0.082"	Fully Threaded	80,000	—	25	94066A849	000000	52775A21	00000	7230A56	00000


				1/4"	0.27"	0.082"	Fully Threaded	80,000	ASME B18.6.3	25	94066A144	00000	52775A21	0000	7230A56	0000
				3/8"	0.27"	0.082"	Fully Threaded	80,000	ASME B18.6.3	25	94066A146	00000	52775A21	0000	7230A56	0000
				1/2"	0.27"	0.082"	Fully Threaded	80,000	ASME B18.6.3	25	94066A148	00000	52775A21	0000	7230A56	0000
				3/4"	0.27"	0.082"	Fully Threaded	80,000	ASME B18.6.3	25	94066A151	00000	52775A21	0000	7230A56	0000
				1"	0.27"	0.082"	Fully Threaded	80,000	ASME B18.6.3	25	94066A153	00000	52775A21	0000	7230A56	0000

Bit Screwdrivers

Cushion Grip

Don't lug around a toolbox full of drivers—just swap out the bit to drive multiple screw sizes and styles with one tool. The ultimate space savers, these bit screwdrivers are a smart solution for on-the-go jobs.

Corrosion-Resistant Stainless Steel—With solid stainless steel construction, these screwdrivers have no coating that could flake off and damage the screw drive. They resist salt water and chemicals better than steel screwdrivers, but are not quite as strong.

Cushion Grip—Made of soft plastic to make gripping and squeezing the handle more comfortable.

					Shaft		Bit
No. of Sizes	Sizes Included	For Bit Hex Shank Size	Overall Lg.	Material	Lg.	Overall Wd.	Material	Holding Mechanism	Grip Style		Each
26	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 Tamper-Resistant Hex: 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 2 mm, 2.5 mm, 3 mm, 5 mm Tamper-Resistant Torx: T7, T8, T10, T15, T20, T25, T27, T30, T40 Torq-Set®: No. 6, No. 8, No. 10	1/4"	8 1/2"	Stainless Steel	3 3/8"	5/16"	Steel	Magnet	Cushion	7262A49	000000

Tamper-Resistant Drilled Spanner Stainless Steel Truss Head Screws

These screws have a wide head that distributes weight and a two-hole design that deters tampering. They only turn with a drilled spanner driver, making them hard to force with other tools. Also known as pig-nose drives, their two contact points won't withstand much torque, so they're good for light duty tasks. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals. Their wide head spreads out pressure without adding a washer to reduce the risk of crushing thin material, such as sheet metal.

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.

Screwdriver Bits—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								Screwdriver Bits		Power Tool Bits
		Head
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				6-32

				1/4"	0.321"	0.086"	Fully Threaded	70,000	25	94135A811	000000	52775A21	00000	7230A56	00000


				3/8"	0.321"	0.086"	Fully Threaded	70,000	25	94135A812	00000	52775A21	0000	7230A56	0000
				1/2"	0.321"	0.086"	Fully Threaded	70,000	25	94135A813	00000	52775A21	0000	7230A56	0000
				3/4"	0.321"	0.086"	Fully Threaded	70,000	25	94135A814	00000	52775A21	0000	7230A56	0000
				1"	0.321"	0.086"	Fully Threaded	70,000	25	94135A815	00000	52775A21	0000	7230A56	0000

Tamper-Resistant Drilled-Spanner Stainless Steel Flat Head Screws for Sheet Metal

Image of Product. Front orientation. Contains MultipleImages. Tapping Screws. Tamper-Resistant Drilled-Spanner Stainless Steel Flat Head Screws for Sheet Metal.

A two-hole drive deters tampering with screws that install in countersunk holes. Also known as pig-nose screws, these require a drilled spanner driver to turn them. However, the two contact points won’t withstand much torque, so they’re best for light duty fastening. They have a flat, beveled head to sit flush with surfaces. The pointed tip starts a hole in sheet metal up to 0.025" thick, but for thicker material you’ll need to drill first. Made of stainless steel, these screws resist corrosion.

Length is measured from the top of the head.

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

Screwdriver Bits—Turn screws by hand for more control and less chance of overtightening compared to power tools.

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

	Tapping Screws												Screwdriver Bits		Power Tools Bits
		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Countersink Angle	Flat Head Profile	Drill Bit Size	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				No. 6 Screw Size

				1/2"	0.279"	0.083"	AB	No. 6	18	82°	Standard	32 Ga.	25	95115A115	00000	52775A21	00000	7230A56	00000


				3/4"	0.279"	0.083"	AB	No. 6	18	82°	Standard	32 Ga.	25	95115A117	0000	52775A21	0000	7230A56	0000
				1"	0.279"	0.083"	AB	No. 6	18	82°	Standard	32 Ga.	25	95115A119	0000	52775A21	0000	7230A56	0000

Tamper-Resistant Drilled Spanner Stainless Steel Rounded Head Screws for Sheet Metal

Image of Product. Front orientation. Contains MultipleImages. Tapping Screws. Tamper-Resistant Drilled Spanner Stainless Steel Rounded Head Screws for Sheet Metal.

A two-hole drive deters tampering and a rounded head creates a finished look. Also known as pig-nose screws, these turn only with a drilled spanner driver. The two contact points won’t withstand much torque, so they’re best for light duty fastening. The pointed tip starts a hole in sheet metal up to 0.025" thick, but for thicker material you’ll need to drill first. These screws resist corrosion.

Length is measured from under the head.

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

Screwdriver Bits—Turn screws by hand for more control and less chance of overtightening compared to power tools.

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

	Tapping Screws										Screwdriver Bits		Power Tools Bits
		Head
	Lg.	Dia.	Ht.	Tapping Screw Type	Drive Size	Approx. Threads per In.	Drill Bit Size	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				No. 6 Screw Size

				1/2"	0.27"	0.082"	AB	No. 6	18	32 Ga.	25	94065A148	00000	52775A21	00000	7230A56	00000


				3/4"	0.27"	0.082"	AB	No. 6	18	32 Ga.	25	94065A151	0000	52775A21	0000	7230A56	0000
				1"	0.27"	0.082"	AB	No. 6	18	32 Ga.	25	94065A153	0000	52775A21	0000	7230A56	0000
				1 1/2"	0.27"	0.082"	AB	No. 6	18	32 Ga.	25	94065A157	0000	52775A21	0000	7230A56	0000

Torq-Set® Bit Sets


Hex Shank	Quick-Change Hex Shank

Similar to Phillips bits, but with offset wings for a better grip. The bits in these sets are less likely to slip out of the screw head and damage the fastener.

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.

	Container Type		Each
For Hand Tools







	1/4" Hex Shank Size

	10 Bits	Torq-Set®: No. 4, No. 6, No. 8, No. 10, 1/4" (1" O'all Lg.)—2 ea.	Steel	—	36735A75	000000


	For Power Tools







					1/4" Quick-Change Hex Shank Size

					10 Bits	Torq-Set®: No. 4, No. 6, No. 8, No. 10, 1/4" (1 1/4" O'all Lg.)—2 ea.	Steel	Plastic Caddy	56075A53	00000

Tri-Wing® Bits

Hex Shank

Use these bits to turn Tri-Wing® screws, which are commonly found on electronics. They have offset wings that withstand high torque without slipping and damaging the drive.

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).

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

	Material		Each
For Hand Tools







	1/4" Hex Shank Size

	No. 6	1/4"	1 1/4"	Steel	7175A52	000000