Tamper-Resistant Torx Plus Screws

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51 Products

Drive Style

Tamper-Resistant Torx

A six-lobe opening with a pin withstands high torque and prevents tampering

11 products

Tamper-Resistant Torx Plus

Withstand the most torque while preventing tampering

40 products

Performance

Corrosion Resistant

Resist corrosion from moisture, chemicals, and harsh weather

46 products

Flat Head Profile

Standard

The most common head profile for flat head screws

42 products

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







				6-32

				1/4"	82°	Undercut	0.279"	0.059"	Fully Threaded	70,000	ASME B18.3	50	91870A712	000000	5043A42	00000


				3/8"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	ASME B18.3	25	91870A714	0000	5043A23	0000
				1/2"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	ASME B18.3	25	91870A715	0000	5043A23	0000
				3/4"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	ASME B18.3	25	91870A716	00000	5043A23	0000
				1"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	ASME B18.3	25	91870A717	00000	5043A23	0000
				1 1/2"	82°	Standard	0.307"	0.097"	Fully Threaded	70,000	ASME B18.3	25	91870A718	00000	5043A23	0000




						8-32

						1/4"	82°	Undercut	0.332"	0.070"	Fully Threaded	70,000	ASME B18.3	25	91870A719	0000	5043A23	0000


						1/2"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	ASME B18.3	25	91870A721	00000	5043A24	0000
						3/4"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	ASME B18.3	25	91870A722	0000	5043A24	0000
						1"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	ASME B18.3	25	91870A723	00000	5043A24	0000
						1 1/2"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	ASME B18.3	10	91870A725	0000	5043A24	0000




								10-24

								3/8"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A732	0000	5043A25	0000


								1/2"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A733	00000	5043A25	0000
								3/4"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A734	00000	5043A25	0000
								1"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A735	00000	5043A25	0000
								1 1/4"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	10	91870A736	0000	5043A25	0000




										10-32

										3/8"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A738	00000	5043A25	0000


										1/2"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A739	00000	5043A25	0000
										3/4"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A741	00000	5043A25	0000
										1"	82°	Standard	0.411"	0.127"	Fully Threaded	70,000	ASME B18.3	25	91870A742	00000	5043A25	0000




												12-24

												1/2"	82°	Undercut	0.438"	0.092"	Fully Threaded	70,000	ASME B18.3	25	91870A745	00000	5043A24	0000


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




		1/4"-20

		3/8"	82°									Undercut	0.507"	0.107"	Fully Threaded	70,000	ASME B18.3	25	91870A748	00000	5043A26	0000


		1/2"	82°									Undercut	0.507"	0.107"	Fully Threaded	70,000	ASME B18.3	25	91870A749	00000	5043A26	0000
		5/8"	82°									Standard	0.531"	0.161"	Fully Threaded	70,000	ASME B18.3	25	91870A751	00000	5043A27	0000
		3/4"	82°									Standard	0.531"	0.161"	Fully Threaded	70,000	ASME B18.3	10	91870A752	0000	5043A27	0000
		1"	82°									Standard	0.531"	0.161"	Fully Threaded	70,000	ASME B18.3	10	91870A753	0000	5043A27	0000
		1 1/4"	82°									Standard	0.531"	0.161"	Fully Threaded	70,000	ASME B18.3	10	91870A754	0000	5043A27	0000
		1 1/2"	82°									Standard	0.531"	0.161"	Fully Threaded	70,000	ASME B18.3	10	91870A755	00000	5043A27	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
	Lg.	Countersink Angle	Flat Head Profile	Dia.	Ht.	Threading	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.		Each		Each
18-8 Stainless Steel







				8-32

				2"	82°	Standard	0.359"	0.112"	Fully Threaded	70,000	ASME B18.3	10	91870A726	00000	55525A27	00000	7233A65	00000




						12-24

						1/2"	82°	Undercut	0.412"	0.092"	Fully Threaded	70,000	ASME B18.3	25	91870A727	00000	55525A27	0000	7233A65	0000


						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




								1/4"-20

								1 3/4"	82°	Standard	0.531"	0.161"	Fully Threaded	70,000	ASME B18.3	10	91870A731	00000	55525A31	0000	7233A68	0000

Tamper-Resistant Torx Plus Steel Flat Head Screws

Our strongest tamper-resistant Torx Plus flat head screws. These screws have a 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 the driver from slipping and stripping the drive. They're made of alloy steel, so they have nearly twice the tensile strength of other screws.

Length is measured from the top of 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.

Standard Profile—Standard-profile heads are the most common choice for flat head screws.

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
Black-Oxide Alloy Steel







				1/4"-20

				3/8"	82°	Undercut	0.507"	0.107"	Fully Threaded	160,000	ASME B18.3	25	91870A774	000000	5043A26	00000


				1/2"	82°	Undercut	0.507"	0.107"	Fully Threaded	160,000	ASME B18.3	25	91870A775	00000	5043A26	0000
				3/4"	82°	Standard	0.507"	0.161"	Fully Threaded	160,000	ASME B18.3	25	91870A776	00000	5043A26	0000
				1"	82°	Standard	0.531"	0.161"	Fully Threaded	160,000	ASME B18.3	25	91870A777	00000	5043A27	0000
				1 1/4"	82°	Standard	0.531"	0.161"	Fully Threaded	160,000	ASME B18.3	25	91870A778	00000	5043A27	0000