12-24 Socket Head Cap Screws

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76 Products

Steel Socket Head Screws

Fully Threaded

Partially Threaded

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—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







				12-24

				1/4"	0.324"	0.216"	Fully Threaded	Coarse	170,000	5	91251A290	00000


				5/16"	0.324"	0.216"	Fully Threaded	Coarse	170,000	5	91251A291	0000
				3/8"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91251A452	0000
				7/16"	0.324"	0.216"	Fully Threaded	Coarse	170,000	5	91251A292	0000
				1/2"	0.324"	0.216"	Fully Threaded	Coarse	170,000	25	91251A453	00000
				5/8"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91864A052	00000
				3/4"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91251A460	0000
				7/8"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91251A461	0000
				1"	0.324"	0.216"	Fully Threaded	Coarse	170,000	25	91251A454	00000
				1 1/4"	0.324"	0.216"	Fully Threaded	Coarse	170,000	5	91864A050	0000
				1 1/2"	0.324"	0.216"	Partially Threaded	Coarse	170,000	5	91864A051	0000


				1 3/4"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91251A480	00000
				2"	0.324"	0.216"	Partially Threaded	Coarse	170,000	10	91251A889	00000
				2 1/4"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91251A481	00000
				2 1/2"	0.324"	0.216"	Fully Threaded	Coarse	170,000	10	91251A482	00000
				2 3/4"	0.324"	0.216"	Fully Threaded	Coarse	170,000	1	90044A264	0000
				3"	0.324"	0.216"	Partially Threaded	Coarse	170,000	1	90044A265	0000

Stainless Steel Socket Head Screws

Fully Threaded

Partially 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.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel screws, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

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







				12-24

				3/8"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92196A293	000000


				1/2"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92196A294	00000
				5/8"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92196A299	00000
				3/4"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92196A295	00000
				7/8"	0.324"	0.216"	Fully Threaded	Coarse	70,000	25	92196A301	00000
				1"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92196A296	00000
				1 1/4"	0.324"	0.216"	Fully Threaded	Coarse	70,000	5	92196A261	00000
				1 1/2"	0.324"	0.216"	Fully Threaded	Coarse	70,000	5	92196A297	00000
				1 3/4"	0.324"	0.216"	Partially Threaded	Coarse	70,000	10	92196A303	0000


				Highly Corrosion-Resistant 316 Stainless Steel







								12-24

								1/2"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92185A275	0000


								3/4"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92185A276	0000
								1"	0.324"	0.216"	Fully Threaded	Coarse	70,000	10	92185A277	0000

Steel Hex-Drive Flat Head Screws

Our strongest hex-drive flat head screws. They're made of alloy steel, so they have nearly twice the tensile strength of other screws. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver without slipping and stripping the drive.

Length is measured from the top of the head.

Zinc-Plated Alloy 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
	Lg.	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				12-24

				3/8"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	10	91253A281	00000


				1/2"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	10	91253A405	0000
				5/8"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	10	91253A282	0000
				3/4"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	10	91253A283	0000
				1"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	10	91253A415	00000
				1 1/4"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	10	91253A284	00000
				1 1/2"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	5	91253A285	0000
				2"	82°	Standard	0.422"	0.135"	Fully Threaded	130,000	ASTM F835	5	91253A286	0000


				Zinc-Plated Alloy Steel







								12-24

								1/2"	82°	Standard	0.438"	0.134"	Fully Threaded	130,000	ASTM F835	25	91263A701	00000


								3/4"	82°	Standard	0.438"	0.134"	Fully Threaded	130,000	ASTM F835	25	91263A704	00000
								1"	82°	Standard	0.438"	0.134"	Fully Threaded	130,000	ASTM F835	25	91263A707	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.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

		Head
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				12-24

				3/8"	0.413"	0.114"	Fully Threaded	70,000	—	—	5	92949A339	00000


				1/2"	0.413"	0.114"	Fully Threaded	70,000	—	Material Certificate	5	92949A340	0000
				5/8"	0.413"	0.114"	Fully Threaded	70,000	—	—	5	92949A341	0000
				3/4"	0.413"	0.114"	Fully Threaded	70,000	—	—	5	92949A342	0000
				1"	0.378"	0.12"	Fully Threaded	70,000	ASTM F879	—	50	92949A433	00000


				Highly Corrosion-Resistant 316 Stainless Steel







								12-24

								1/2"	0.413"	0.114"	Fully Threaded	70,000	ASTM F879	—	25	98164A513	0000


								3/4"	0.413"	0.114"	Fully Threaded	70,000	ASTM F879	—	25	98164A514	00000
								1"	0.413"	0.114"	Fully Threaded	70,000	ASTM F879	—	25	98164A515	00000

Steel Button Head Hex-Drive Screws

Made of alloy steel, these screws have nearly twice the tensile strength of other 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.

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







				12-24

				3/8"	0.413"	0.114"	Fully Threaded	120,000	ASME B18.3, ASTM F835	10	91255A279	00000


				1/2"	0.41"	0.115"	Fully Threaded	140,000	ASME B18.3, ASTM F835	50	91255A816	00000
				5/8"	0.413"	0.114"	Fully Threaded	120,000	ASME B18.3, ASTM F835	10	91255A281	00000
				3/4"	0.41"	0.115"	Fully Threaded	140,000	ASME B18.3, ASTM F835	50	91255A817	00000
				1"	0.41"	0.115"	Fully Threaded	140,000	ASME B18.3, ASTM F835	50	91255A818	00000


				Zinc-Plated Alloy Steel







								12-24

								3/4"	0.336"	0.094"	Fully Threaded	120,000	ASTM F835	10	91306A302	00000

Stainless Steel Hex-Drive Flat Head Screws

The most corrosion-resistant hex-drive 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 six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver 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.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.

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	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				12-24

				1/2"	82°	Standard	0.438"	0.134"	Fully Threaded	70,000	—	5	92210A026	00000


				3/4"	82°	Standard	0.438"	0.134"	Fully Threaded	70,000	—	5	92210A027	0000
				1"	82°	Standard	0.438"	0.134"	Fully Threaded	70,000	Material Certificate	5	92210A028	0000


				Highly Corrosion-Resistant 316 Stainless Steel







								12-24

								1/2"	82°	Standard	0.438"	0.134"	Fully Threaded	70,000	—	1	90585A033	0000


								3/4"	82°	Standard	0.438"	0.134"	Fully Threaded	70,000	—	1	90585A034	0000
								1"	82°	Standard	0.438"	0.134"	Fully Threaded	70,000	—	1	90585A035	0000

Tamper-Resistant Torx Plus Stainless Steel Flat Head Screws

A secure, tamper-resistant option for corrosive environments. These screws prevent unauthorized access and damage to components. They have a security pin in the drive that you can only turn with a tamper-resistant Torx Plus or tamper-resistant pentalobe driver. With a deep five-lobe opening, the drive withstands high torque and prevents you from 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.

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.

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







				12-24

				1/2"	82°	Undercut	0.438"	0.092"	Fully Threaded	70,000	ASME B18.3	25	91870A745	000000	5043A24	00000


				3/4"	82°	Standard	0.438"	0.132"	Fully Threaded	70,000	ASME B18.3	25	91870A746	00000	5043A25	0000

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
	Lg.	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				12-24

				1/2"	0.413"	0.114"	Fully Threaded	70,000	ASME B18.3	10	91900A918	00000	55525A28	00000	7233A66	00000


				3/4"	0.413"	0.114"	Fully Threaded	70,000	ASME B18.3	10	91900A919	0000	55525A28	0000	7233A66	0000

Tamper-Resistant Hex-Drive Steel Button Head Screws

Our strongest hex-drive screws for deterring unauthorized access. Also known as pin-in-hex and pin-in-socket drives, these screws have a security pin in the drive that you can only turn with a tamper-resistant hex driver. The deep six-point opening helps them withstand torque without damaging 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.

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	Specs. Met	Pkg. Qty.		Pkg.		Each
Black-Oxide Alloy Steel







				12-24

				1/2"	0.413"	0.114"	Fully Threaded	130,000	ASME B18.3, ASTM F835	25	90484A269	00000	7240A35	00000

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







				12-24

				1/2"	82°	Undercut	0.412"	0.092"	Fully Threaded	70,000	ASME B18.3	25	91870A727	000000	55525A27	00000	7233A65	00000


				3/4"	82°	Standard	0.438"	0.132"	Fully Threaded	70,000	ASME B18.3	25	91870A728	00000	55525A28	0000	7233A66	0000
				1"	82°	Standard	0.438"	0.132"	Fully Threaded	70,000	ASME B18.3	25	91870A729	00000	55525A28	0000	7233A66	0000