Tapcon Screws | McMaster-Carr

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100 Products

Hex Head Tapping Screws for Masonry and Concrete

Secure material into masonry and concrete—these screws have a hex head for a firm, high-torque grip. They’re also known as Tapcons. To create a pilot hole, use a hammer drill or rotary hammer and a compatible bit. Pull-out strength and shear strength values are 25% of the ultimate values.

Corrosion-Resistant-Coated Steel—Won’t rust in wet environments but are less corrosion resistant than stainless steel screws.

410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.

					Head		Strength, lbf
	Lg.	Drill Bit Size	Thread Lg.	Min. Installation Dp.	Wd.	Ht.	Pull-Out	Shear	Conditions Tested In	Drive Style	Pkg. Qty.		Pkg.
Blue Corrosion-Resistant-Coated Steel







				3/16" Screw Size

				1 1/4"	5/32"	1 1/4"	1"	1/4"	9/64"	150	180	3,000 psi Concrete	Slotted/External Hex	50	90161A512	000000


				1 3/4"	5/32"	1 5/8"	1"	1/4"	9/64"	150	180	3,000 psi Concrete	Slotted/External Hex	50	90161A525	00000
				2 1/4"	5/32"	1 5/8"	1"	1/4"	9/64"	150	180	3,000 psi Concrete	Slotted/External Hex	50	90161A101	00000
				2 3/4"	5/32"	1 5/8"	1"	1/4"	9/64"	150	180	3,000 psi Concrete	Slotted/External Hex	50	90161A529	00000
				3 1/4"	5/32"	1 5/8"	1"	1/4"	9/64"	150	180	3,000 psi Concrete	Slotted/External Hex	25	90161A531	00000




						1/4" Screw Size

						1 1/4"	3/16"	1 1/4"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	50	90161A544	00000


						1 3/4"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	50	90161A548	00000
						2 1/4"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	50	90161A551	00000
						2 3/4"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	25	90161A553	00000
						3 1/4"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	25	90161A555	00000
						3 3/4"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	25	90161A557	00000
						4"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	25	90161A559	00000
						5"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	10	90161A564	00000
						6"	3/16"	1 5/8"	1"	5/16"	3/16"	190	225	3,000 psi Concrete	Slotted/External Hex	10	90161A568	00000


						Silver Corrosion-Resistant-Coated Steel







										1/4" Screw Size

										1 3/4"	3/16"	1 1/2"	1"	5/16"	15/64"	150	150	3,000 psi Concrete	External Hex	25	90161A109	0000


										2 1/4"	3/16"	1 7/8"	1"	5/16"	15/64"	150	150	3,000 psi Concrete	External Hex	25	90161A112	00000




												5/16" Screw Size

												1 3/4"	1/4"	1 1/2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	25	90161A671	00000


												2 1/4"	1/4"	2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	25	90161A381	00000
												2 3/4"	1/4"	2"	1"	5/16"	15/64"	165	195	3,000 psi Concrete	External Hex	25	90161A385	00000
												3 1/4"	1/4"	2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	10	90161A672	0000
												3 3/4"	1/4"	2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	10	90161A673	00000
												4"	1/4"	2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	10	90161A674	00000
												5"	1/4"	2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	10	90161A675	00000
6"												1/4"	2"	1"	5/16"	1/4"	165	195	3,000 psi Concrete	External Hex	5	90161A676	00000


410 Stainless Steel







												1/4" Screw Size

												1 1/4"	3/16"	1"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	10	90950A101	00000


												1 3/4"	3/16"	1 5/8"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	10	90950A102	00000
												2 1/4"	3/16"	1 5/8"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	10	90950A103	00000
												2 3/4"	3/16"	1 5/8"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	10	90950A104	00000
				3 1/4"								3/16"	2 1/8"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	5	90950A930	0000
				3 3/4"	3/16"							2 1/8"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	5	90950A910	00000
				5"	3/16"							2 1/4"	1"	5/16"	0.18"	190	225	3,000 psi Concrete	External Hex	1	90950A920	0000

Installation Tools

Includes		Each
5/16" Hex Socket No. 2 Socket 1/4" Hex Socket 1/8" Hex Key Drill Adapter 1/2" dia. × 6" lg. Drive Sleeve	90161A104	0000000

Flat Head Tapping Screws for Masonry and Concrete

Beveled under the head, these screws give you a flush finish in countersunk holes. They’re also known as Tapcons. To create a pilot hole, use a hammer drill or rotary hammer and a compatible bit. Pull-out strength and shear strength values are 25% of the ultimate values.

Corrosion-Resistant-Coated Steel—Won’t rust in wet environments but are less corrosion resistant than stainless steel screws.

410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.

					Head		Strength, lbf
	Lg.	Drill Bit Size	Thread Lg.	Min. Installation Dp.	Dia.	Ht.	Pull-Out	Shear	Conditions Tested In	Drive Style	Countersink Angle	Pkg. Qty.		Pkg.
Blue Corrosion-Resistant-Coated Steel







				3/16" Screw Size

				1 1/4"	5/32"	1 3/32"	1"	3/8"	0.16"	150	180	3,000 psi Concrete	Torx	82°	50	90161A812	000000


				1 3/4"	5/32"	1 19/32"	1"	3/8"	0.16"	150	180	3,000 psi Concrete	Torx	82°	50	90161A725	00000
				2 1/4"	5/32"	1 5/8"	1"	3/8"	0.16"	150	180	3,000 psi Concrete	Torx	82°	50	90161A827	00000
				2 3/4"	5/32"	1 5/8"	1"	3/8"	—	150	180	3,000 psi Concrete	Torx	82°	50	90161A102	00000
				3 1/4"	5/32"	1 5/8"	1"	3/8"	0.16"	150	180	3,000 psi Concrete	Torx	82°	25	90161A831	00000




						1/4" Screw Size

						1 1/4"	3/16"	1 3/64"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	50	90161A844	00000


						1 3/4"	3/16"	1 35/64"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	50	90161A848	00000
						2 1/4"	3/16"	1 5/8"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	50	90161A851	00000
						2 3/4"	3/16"	1 5/8"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	25	90161A853	00000
						3 1/4"	3/16"	1 5/8"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	25	90161A855	00000
						3 3/4"	3/16"	1 5/8"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	25	90161A658	00000
						4"	3/16"	1 5/8"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	25	90161A859	00000
						5"	3/16"	1 5/8"	1"	1/2"	0.21"	190	225	3,000 psi Concrete	Torx	82°	10	90161A775	00000
						6"	3/16"	1 5/8"	1"	1/2"	0.208"	190	225	3,000 psi Concrete	Torx	82°	10	90161A103	00000


						Silver Corrosion-Resistant-Coated Steel







										3/16" Screw Size

										1 3/4"	5/32"	1 1/2"	1"	3/8"	0.141"	100	150	3,000 psi Concrete	Torx	82°	50	90161A307	00000


										2 1/4"	5/32"	1 7/8"	1"	3/8"	0.141"	150	160	3,000 psi Concrete	Torx	82°	50	90161A415	00000




												5/16" Screw Size

												2 1/4"	1/4"	1 3/4"	1"	9/16"	0.203"	170	210	3,500 psi Concrete	Torx	82°	25	90161A396	00000


												2 3/4"	1/4"	1 1/2"	1"	9/16"	0.203"	170	210	3,500 psi Concrete	Torx	82°	25	90161A399	00000


												410 Stainless Steel







		3/16" Screw Size

		1 3/4"	5/32"											1 1/2"	1"	0.36"	—	155	180	3,000 psi Concrete	Phillips	82°	10	90950A153	0000


		2 1/4"	5/32"											1 5/8"	1"	0.36"	—	155	180	3,000 psi Concrete	Phillips	82°	10	90950A154	00000
		2 3/4"	5/32"											1 5/8"	1"	0.36"	—	155	180	3,000 psi Concrete	Phillips	82°	10	90950A155	00000




														1/4" Screw Size

														1 1/4"	3/16"	1"	1"	0.48"	—	190	225	3,000 psi Concrete	Phillips	82°	10	90950A105	00000


				1 3/4"	3/16"									1 5/8"	1"	0.48"	—	190	225	3,000 psi Concrete	Phillips	82°	10	90950A106	00000
				2 1/4"	3/16"									1 5/8"	1"	0.48"	—	190	225	3,000 psi Concrete	Phillips	82°	10	90950A107	00000
				2 3/4"	3/16"									1 5/8"	1"	0.48"	—	190	225	3,000 psi Concrete	Phillips	82°	10	90950A108	00000
				3 1/4"	3/16"									2 1/8"	1"	0.48"	—	190	225	3,000 psi Concrete	Phillips	82°	5	90950A151	00000
				3 3/4"	3/16"									2 1/8"	1"	0.48"	—	190	225	3,000 psi Concrete	Phillips	82°	5	90950A152	00000

Installation Tools

Includes		Each
5/16" Hex Socket No. 2 Socket 1/4" Hex Socket 1/8" Hex Key Drill Adapter 1/2" dia. × 6" lg. Drive Sleeve	90161A104	0000000

Heavy Duty Hex Head Tapping Screws for Masonry and Concrete

Also known as Tapcons, use these screws in applications requiring high strength. All have a hex-washer head for a secure grip with a wrench. Drive into a hole with a hammer drill or socket wrench. Pull-out strength and shear strength values are 25% of the ultimate values.

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

Zinc-Plated 410 Stainless Steel—410 stainless steel screws are strong, wear resistant, mildly chemical resistant, and magnetic. They have a zinc plating that adds extra corrosion resistance.

					Head		Strength, lbf
	Lg.	Drill Bit Size	Thread Lg.	Min. Installation Dp.	Wd.	Ht.	Pull-Out	Shear	Conditions Tested In	Drive Style	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				1/4" Screw Size

				1 1/4"	1/4"	1 1/4"	1"	7/16"	5/16"	380	480	4,000 psi Concrete	External Hex	10	99795A171	00000


				1 3/4"	1/4"	1 5/8"	1"	7/16"	5/16"	380	480	4,000 psi Concrete	External Hex	10	99795A174	0000
				2 1/4"	1/4"	1 5/8"	1"	7/16"	5/16"	380	480	4,000 psi Concrete	External Hex	10	99795A193	0000
				2 5/8"	1/4"	2 1/2"	1"	7/16"	5/16"	380	480	4,000 psi Concrete	External Hex	10	99795A241	0000
				3"	1/4"	2 1/2"	1"	7/16"	5/16"	380	480	4,000 psi Concrete	External Hex	10	99795A249	0000




						3/8" Screw Size

						1 3/4"	5/16"	1 1/2"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	10	99795A119	00000


						2 1/2"	5/16"	2 1/4"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	10	99795A130	00000
						3"	5/16"	2 5/8"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	10	99795A101	00000
						4"	5/16"	3 5/8"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	4	99795A102	0000
						5"	5/16"	3 5/8"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	4	99795A104	00000
						6"	3/8"	3 1/4"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	4	99795A289	0000




								1/2" Screw Size

								2"	1/2"	1 3/4"	1 3/4"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A297	0000


								2 1/2"	1/2"	2 1/2"	1 3/4"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A536	0000
								3"	7/16"	2 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A105	00000
								4"	7/16"	3 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A106	00000
								5"	7/16"	4 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A108	00000
								6"	7/16"	5 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A109	00000
								8"	1/2"	4 1/4"	1 3/4"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	4	99795A568	00000




										5/8" Screw Size

										3"	1/2"	2 1/2"	2 3/4"	13/16"	5/8"	1,900	3,300	4,000 psi Concrete	External Hex	1	99795A131	0000


										4"	1/2"	3 1/2"	2 3/4"	13/16"	5/8"	1,900	3,300	4,000 psi Concrete	External Hex	1	99795A112	0000
										5"	1/2"	4 1/2"	2 3/4"	13/16"	5/8"	1,900	3,300	4,000 psi Concrete	External Hex	1	99795A113	0000
										6"	1/2"	5 1/2"	2 3/4"	13/16"	5/8"	1,900	3,300	4,000 psi Concrete	External Hex	1	99795A114	0000
										8"	5/8"	5"	2 1/2"	13/16"	5/8"	1,800	3,300	4,000 psi Concrete	External Hex	1	99795A570	0000




												3/4" Screw Size

3"												3/4"	3"	2 1/2"	1 1/8"	7/8"	1,900	3,500	4,000 psi Concrete	External Hex	1	99795A572	0000


4"	3/4"											3"	2 1/2"	1 1/8"	7/8"	1,900	3,500	4,000 psi Concrete	External Hex	1	99795A580	0000
4 1/2"	5/8"											3 7/8"	3 1/4"	15/16"	7/8"	3,100	3,500	4,000 psi Concrete	External Hex	1	99795A115	0000
5"	3/4"	4 1/4"										2 1/2"	1 1/8"	7/8"	1,900	3,500	4,000 psi Concrete	External Hex	1	99795A692	0000
5 1/2"	5/8"	4 5/8"	3 1/4"									15/16"	7/8"	3,100	3,500	4,000 psi Concrete	External Hex	1	99795A116	0000
6"	3/4"	4 1/4"	2 1/2"									1 1/8"	7/8"	1,900	3,500	4,000 psi Concrete	External Hex	1	99795A719	0000
6 1/4"	5/8"	4 5/8"	3 1/4"									15/16"	7/8"	3,100	3,500	4,000 psi Concrete	External Hex	1	99795A117	00000
8"	3/4"	6"	2 1/2"									1 1/8"	7/8"	1,900	3,500	4,000 psi Concrete	External Hex	1	99795A756	0000
10"	3/4"	4 1/4"	2 1/2"									1 1/8"	7/8"	1,900	3,500	4,000 psi Concrete	External Hex	1	99795A827	00000


Zinc-Plated 410 Stainless Steel







				3/8" Screw Size

				2 1/2"	5/16"							2 1/4"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	1	99795A134	0000


				3"	5/16"							2 5/8"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	1	99795A137	0000
				4"	5/16"							3 5/8"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	1	99795A150	0000
				5"	5/16"							3 5/8"	1 1/2"	9/16"	3/8"	490	850	4,000 psi Concrete	External Hex	1	99795A153	0000




												1/2" Screw Size

						3"	7/16"					2 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	1	99795A156	00000


						4"	7/16"					3 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	1	99795A161	00000
						5"	7/16"					4 3/4"	2 1/2"	3/4"	7/16"	1,000	1,800	4,000 psi Concrete	External Hex	1	99795A163	00000

Tapping Screw Assortments for Masonry and Concrete

Keep a variety of screw sizes on hand to secure material into masonry or concrete. These screws have a hex head for a firm, high-torque grip. They’re also known as Tapcons. To create a pilot hole, use a hammer drill or rotary hammer with the included drill bit.

	Certification	Tools Included	Container Type		Each
Blue Corrosion-Resistant-Coated Steel







	For Hammer Drilling

	176	1/4" × 1 1/4" Lg. (50 Pieces) 1/4" × 1 3/4" Lg. (50 Pieces) 1/4" × 2 1/4" Lg. (50 Pieces) 1/4" × 2 3/4" Lg. (25 Pieces)	Slotted/External Hex	ICC-ES Listed	Drill Bit	Plastic Box	90161A114	000000




			For Rotary Drilling

			176	1/4" × 1 1/4" Lg. (50 Pieces) 1/4" × 1 3/4" Lg. (50 Pieces) 1/4" × 2 1/4" Lg. (50 Pieces) 1/4" × 2 3/4" Lg. (25 Pieces)	Slotted/External Hex	ICC-ES Listed	Drill Bit	Plastic Box	90161A115	00000

Installation Tools