No. 14 Drive Screws | McMaster-Carr

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55 Products

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







				1/4"-20

				1/4"	0.492"	0.144"	Fully Threaded	80,000	—	25	94066A854	000000	52775A33	00000	7230A44	00000


				3/8"	0.492"	0.144"	Fully Threaded	80,000	ASME B18.6.3	25	94066A535	00000	52775A33	0000	7230A44	0000
				1/2"	0.492"	0.144"	Fully Threaded	80,000	ASME B18.6.3	25	94066A537	00000	52775A33	0000	7230A44	0000
				5/8"	0.492"	0.144"	Fully Threaded	80,000	—	10	94066A855	0000	52775A33	0000	7230A44	0000
				3/4"	0.492"	0.144"	Fully Threaded	80,000	ASME B18.6.3	10	94066A540	0000	52775A33	0000	7230A44	0000
				1"	0.492"	0.144"	Fully Threaded	80,000	ASME B18.6.3	10	94066A542	0000	52775A33	0000	7230A44	0000
				1 1/4"	0.492"	0.144"	Fully Threaded	80,000	—	10	94066A856	00000	52775A33	0000	7230A44	0000
				1 1/2"	0.492"	0.144"	Fully Threaded	80,000	ASME B18.6.3	10	94066A546	00000	52775A33	0000	7230A44	0000
				2"	0.492"	0.144"	Fully Threaded	80,000	ASME B18.6.3	10	94066A550	00000	52775A33	0000	7230A44	0000
				3"	0.492"	0.144"	Partially Threaded	80,000	ASME B18.6.3	10	94066A554	00000	52775A33	0000	7230A44	0000




						1/4"-28

						1/2"	0.492"	0.144"	Fully Threaded	80,000	—	10	94066A857	0000	52775A33	0000	7230A44	0000


						3/4"	0.492"	0.144"	Fully Threaded	80,000	—	10	94066A858	0000	52775A33	0000	7230A44	0000
						1"	0.492"	0.144"	Fully Threaded	80,000	—	10	94066A859	0000	52775A33	0000	7230A44	0000




								M6 × 1 mm

								10 mm	11.99 mm	3.59 mm	Fully Threaded	80,000	—	25	94066A622	00000	52775A33	0000	7230A44	0000


								12 mm	11.99 mm	3.59 mm	Fully Threaded	80,000	—	25	94066A623	00000	52775A33	0000	7230A44	0000
								16 mm	11.99 mm	3.59 mm	Fully Threaded	80,000	—	25	94066A624	00000	52775A33	0000	7230A44	0000
								20 mm	11.99 mm	3.59 mm	Fully Threaded	80,000	—	25	94066A625	00000	52775A33	0000	7230A44	0000
								25 mm	11.99 mm	3.59 mm	Fully Threaded	80,000	—	10	94066A626	0000	52775A33	0000	7230A44	0000

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







				1/4"-20

				3/8"	0.573"	0.15"	Fully Threaded	70,000	—	25	94135A823	000000	52775A33	00000	7230A44	00000


				1/2"	0.573"	0.15"	Fully Threaded	70,000	ASME B18.6.3	10	94135A451	0000	52775A33	0000	7230A44	0000
				3/4"	0.573"	0.15"	Fully Threaded	70,000	—	10	94135A824	0000	52775A33	0000	7230A44	0000
				1"	0.573"	0.15"	Fully Threaded	70,000	ASME B18.6.3	10	94135A453	0000	52775A33	0000	7230A44	0000
				1 1/2"	0.573"	0.15"	Fully Threaded	70,000	—	10	94135A825	00000	52775A33	0000	7230A44	0000




						5/16"-18

						3/4"	0.698"	0.183"	Fully Threaded	70,000	ASME B18.6.3	10	94135A581	00000	52775A33	0000	7230A44	0000


						1"	0.698"	0.183"	Fully Threaded	70,000	ASME B18.6.3	10	94135A583	0000	52775A33	0000	7230A44	0000
						1 1/4"	0.698"	0.183"	Fully Threaded	70,000	ASME B18.6.3	10	94135A585	00000	52775A33	0000	7230A44	0000
						1 1/2"	0.698"	0.183"	Fully Threaded	70,000	ASME B18.6.3	10	94135A587	00000	52775A33	0000	7230A44	0000
						2"	0.698"	0.183"	Fully Threaded	70,000	ASME B18.6.3	10	94135A591	00000	52775A33	0000	7230A44	0000
						2 1/2"	0.698"	0.183"	Partially Threaded	70,000	ASME B18.6.3	10	94135A593	00000	52775A33	0000	7230A44	0000




								3/8"-16

								3/4"	0.823"	0.215"	Fully Threaded	70,000	ASME B18.6.3	10	94135A622	00000	52775A33	0000	7230A44	0000


								1"	0.823"	0.215"	Fully Threaded	70,000	ASME B18.6.3	10	94135A624	00000	52775A33	0000	7230A44	0000
								1 1/4"	0.823"	0.215"	Fully Threaded	70,000	ASME B18.6.3	10	94135A626	00000	52775A33	0000	7230A44	0000
								1 1/2"	0.823"	0.215"	Fully Threaded	70,000	ASME B18.6.3	10	94135A628	00000	52775A33	0000	7230A44	0000
								2"	0.823"	0.215"	Fully Threaded	70,000	ASME B18.6.3	5	94135A632	00000	52775A33	0000	7230A44	0000
								2 1/2"	0.823"	0.215"	Partially Threaded	70,000	ASME B18.6.3	5	94135A634	00000	52775A33	0000	7230A44	0000
								3"	0.823"	0.215"	Fully Threaded	70,000	ASME B18.6.3	5	94135A637	00000	52775A33	0000	7230A44	0000

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







				1/4"-20

				1/2"	82°	Undercut	0.477"	0.107"	Fully Threaded	70,000	ASME B18.6.3	25	94063A537	000000	52775A33	00000	7230A44	00000


				5/8"	82°	Standard	0.507"	0.153"	Fully Threaded	70,000	ASME B18.6.3	10	94063A322	0000	52775A33	0000	7230A44	0000
				3/4"	82°	Standard	0.477"	0.153"	Fully Threaded	70,000	ASME B18.6.3	25	94063A540	00000	52775A33	0000	7230A44	0000
				1"	82°	Standard	0.477"	0.153"	Fully Threaded	70,000	ASME B18.6.3	25	94063A542	00000	52775A33	0000	7230A44	0000
				1 1/4"	82°	Standard	0.477"	0.153"	Fully Threaded	70,000	ASME B18.6.3	10	94063A544	0000	52775A33	0000	7230A44	0000
				1 1/2"	82°	Standard	0.477"	0.153"	Fully Threaded	70,000	ASME B18.6.3	10	94063A546	0000	52775A33	0000	7230A44	0000
				2"	82°	Standard	0.477"	0.153"	Fully Threaded	70,000	ASME B18.6.3	10	94063A550	0000	52775A33	0000	7230A44	0000
				2 1/2"	82°	Standard	0.477"	0.153"	Partially Threaded	70,000	ASME B18.6.3	10	94063A552	00000	52775A33	0000	7230A44	0000




						M6 × 1 mm

						12 mm	90°	Standard	11.00 mm	3.00 mm	Fully Threaded	80,000	—	25	94063A337	00000	52775A33	0000	7230A44	0000


						16 mm	90°	Standard	11.00 mm	3.00 mm	Fully Threaded	80,000	—	25	94063A338	00000	52775A33	0000	7230A44	0000
						20 mm	90°	Standard	11.00 mm	3.00 mm	Fully Threaded	80,000	—	10	94063A339	0000	52775A33	0000	7230A44	0000
						25 mm	90°	Standard	11.00 mm	3.00 mm	Fully Threaded	80,000	—	10	94063A340	0000	52775A33	0000	7230A44	0000
						30 mm	90°	Standard	11.00 mm	3.00 mm	Fully Threaded	80,000	—	10	94063A341	0000	52775A33	0000	7230A44	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, mm	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				No. 14 Screw Size

				3/4"	0.492"	0.144"	AB	No. 14	10	5.5	25	94065A313	000000	52775A33	00000	7230A44	00000


				1"	0.492"	0.144"	AB	No. 14	10	5.5	10	94065A315	0000	52775A33	0000	7230A44	0000
				2"	0.492"	0.144"	AB	No. 14	10	5.5	10	94065A319	0000	52775A33	0000	7230A44	0000

Plain-Grip Screwdrivers

Ideal for industrial maintenance, these no-frills screwdrivers withstand years of heavy use in the shop and on the jobsite. The hard plastic handle won't crack or wear out from drops and scrapes. It's also easy to wipe down and won't get sticky or gummy when exposed to oils or chemicals, unlike a soft handle.

Premium—The best screwdrivers available, with tips machined to tight tolerances for the tightest possible fit in fastener recesses. The snug fit means they'll turn screws quickly without slippage, which would wear on screw heads and the driver's tip.

Standard Length—The most common screwdriver length for a specific drive size.

				Shaft
	Drive Size	Relative Lg.	Overall Lg.	Lg.	Overall Wd.	Material	Mfr.		Each
Drilled Spanner







				Premium

				No. 14	Standard	8"	4"	5/16"	Steel	Allegheny Bolt & Screw	94062A119	000000