Removable Bolt Anchors | McMaster-Carr

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93 Products

Removable Taper-Bolt Anchors for Concrete

Remove the bolt to adjust, move, or replace components. Manufactured in the U.S. with Grade 5 steel, these anchors have over twice the shear strength of our wedge anchors, making them strong enough to secure highway barriers and train tracks. When you tighten them, the tapered bolt expands the nut, spreading the gripping force along its entire length. This creates the higher strength than wedge anchors, where the grip is focused at the wedge. These anchors are more forgiving of variations in hole precision than wedge anchors and require more torque to install. The increased torque puts stress on your base material, so don't use them near edges, corners, or in cracked surfaces.

To install, thread the nut onto the tapered bolt. Drive the anchor through your component into a drilled hole. Then, turn the bolt to expand the nut for a tight hold. You can repeatedly use the bolt in the same hole. To use the bolt in a new hole, a replacement expander nut (sold separately) is required.

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

	Anchors														Replacement Expander Nuts
						Ultimate Strength, lbf				Each		Package
	Lg.	Thread Lg.	Head Wd.	Min. Installation Dp.	Drill Bit Size	Pull-Out	Shear	Conditions Tested In	Installation Torque, ft·lbf		Each	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				3/8" Diameter

				2 1/4"	3/4"	9/16"	1 7/8"	3/8"	4,000	6,800	3,000 psi Concrete	40	92914A610	00000	50	92914A612	0000000	10	92914A580	000000


				3"	3/4"	9/16"	1 7/8"	3/8"	4,000	6,800	3,000 psi Concrete	40	92914A630	0000	25	92914A632	00000	10	92914A580	00000
				4"	3/4"	9/16"	1 7/8"	3/8"	4,000	6,800	3,000 psi Concrete	40	92914A640	0000	25	92914A642	00000	10	92914A580	00000




						1/2" Diameter

						2 7/8"	1 1/8"	3/4"	2 3/8"	1/2"	8,000	12,000	3,000 psi Concrete	90	92914A410	0000	25	92914A412	00000	10	92914A530	00000


						4"	1 1/8"	3/4"	2 3/8"	1/2"	8,000	12,000	3,000 psi Concrete	90	92914A420	0000	25	92914A422	000000	10	92914A530	00000
						5"	1 1/8"	3/4"	2 3/8"	1/2"	8,000	12,000	3,000 psi Concrete	90	92914A430	0000	20	92914A432	000000	10	92914A530	00000




								5/8" Diameter

								3 1/2"	1 3/8"	15/16"	2 7/8"	5/8"	9,600	16,800	3,000 psi Concrete	125	92914A440	0000	20	92914A442	000000	10	92914A540	00000


								4 1/2"	1 3/8"	15/16"	2 7/8"	5/8"	9,600	16,800	3,000 psi Concrete	125	92914A450	00000	10	92914A452	00000	10	92914A540	00000




										3/4" Diameter

										4 1/8"	1 1/2"	1 1/8"	3 3/8"	3/4"	11,600	27,200	3,000 psi Concrete	250	92914A460	00000	20	92914A462	000000	5	92914A550	00000


										5 1/2"	1 1/2"	1 1/8"	3 3/8"	3/4"	11,600	27,200	3,000 psi Concrete	250	92914A470	00000	10	92914A472	000000	5	92914A550	00000
										8"	1 1/2"	1 1/8"	3 3/8"	3/4"	11,600	27,200	3,000 psi Concrete	250	92914A480	00000	10	92914A482	000000	5	92914A550	00000




												1" Diameter

												5 5/8"	2 1/8"	1 1/2"	4 5/8"	1"	28,000	36,000	3,000 psi Concrete	550	92914A755	00000	10	92914A752	000000	4	92914A560	00000


												7 1/4"	2 1/8"	1 1/2"	4 5/8"	1"	28,000	36,000	3,000 psi Concrete	550	92914A760	00000	—	———	0	4	92914A560	00000

Bolt-Style Sleeve Anchors for Block and Brick

Remove the bolt so the anchor is flush with your walls and floors to slide components past these anchors, making it easier to install or make adjustments. They’re best for door frames that need to be pressed into place or machinery you service frequently. All have a sleeve that expands inside your hole to create a strong grip. Since the gripping force is distributed along the entire length of the anchor, it won’t crack soft materials like block and brick. You can use these anchors as an alternative to wedge anchors in concrete near edges, corners, or other weak points, but they are not as strong.

To install, drive the anchor through your component into a drilled hole until the head meets the surface. Then, tighten the bolt to expand the anchor sleeve. As you tighten, the nylon ring compresses to secure the component against the surface. You can remove the bolt, but the anchor itself cannot be removed.

Anchors with Hex Head

Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these anchors resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

		Thread				Ultimate Strength, lbf				Each		Package
	Lg.	Size	Lg.	Min. Installation Dp.	Drill Bit Size	Pull-Out	Shear	Conditions Tested In	Installation Torque, ft·lbf		Each	Pkg. Qty.		Pkg.
Corrosion-Resistant 18-8 Stainless Steel







				1/4" Diameter

				1 3/4"	10-24	3/4"	1 1/4"	1/4"	1,480	2,080	4,000 psi Concrete	3	92405A194	00000	4	92405A102	000000


				3"	10-24	3/4"	1 1/4"	1/4"	1,480	2,080	4,000 psi Concrete	3	92405A198	0000	4	92405A104	00000




						3/8" Diameter

						2 1/4"	5/16"-18	7/8"	2"	3/8"	4,400	6,400	4,000 psi Concrete	12	92405A200	0000	4	92405A106	00000


						3 1/2"	5/16"-18	7/8"	2"	3/8"	4,400	6,400	4,000 psi Concrete	12	92405A202	00000	4	92405A108	00000
						4"	5/16"-18	7/8"	2"	3/8"	4,400	6,400	4,000 psi Concrete	12	92405A203	00000	4	92405A111	00000




								1/2" Diameter

								2 3/4"	3/8"-16	1"	2 1/2"	1/2"	6,400	8,000	4,000 psi Concrete	25	92405A300	00000	4	92405A113	00000


								4 3/4"	3/8"-16	1"	2 1/2"	1/2"	6,400	8,000	4,000 psi Concrete	25	92405A302	00000	4	92405A115	00000

Anchors with Flat Head

The flat head creates a flush finish in countersunk holes.

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

		Thread				Ultimate Strength, lbf					Each		Package
	Lg.	Size	Lg.	Min. Installation Dp.	Drill Bit Size	Pull-Out	Shear	Conditions Tested In	Installation Torque, ft·lbf	Certification		Each	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				3/8" Diameter

				3 3/4"	5/16"-18	7/8"	2"	3/8"	4,400	6,400	4,000 psi Concrete	25	UL Listed	92403A803	00000	10	92403A823	000000


				5"	5/16"-18	7/8"	2"	3/8"	4,400	6,400	4,000 psi Concrete	25	UL Listed	92403A805	0000	10	92403A825	00000
				6"	5/16"-18	7/8"	2"	3/8"	4,400	6,400	4,000 psi Concrete	25	UL Listed	92403A806	0000	10	92403A826	00000




						1/2" Diameter

						5"	3/8"-16	1"	2 1/2"	1/2"	6,400	8,000	4,000 psi Concrete	45	UL Listed	92403A801	0000	10	92403A821	00000




								5/8" Diameter

								5 1/2"	1/2"-13	1 1/8"	2 3/4"	5/8"	7,600	11,600	4,000 psi Concrete	100	UL Listed	92403A802	00000	4	92403A822	00000

Heavy Duty Hex Head Tapping Screws for Concrete, Block, and Brick

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 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.

Zinc-Plated Steel—Steel screws are strong and wear resistant. They have a zinc plating that adds some corrosion resistance, but they aren’t as corrosion resistant as stainless steel.

					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 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	00000


				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


						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	0000


										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"	2,700	3,500	4,000 psi Concrete	External Hex	1	99795A572	0000


				4"	3/4"	3"	2 1/2"							1 1/8"	7/8"	2,700	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"	2,700	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"	2,700	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"	4 1/4"	2 1/2"	1 1/8"	7/8"					2,700	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"					2,700	3,500	4,000 psi Concrete	External Hex	1	99795A827	00000