System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Component Component |
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Head Type Head Type |
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![]() | Hex |
Hex Head Profile Hex Head Profile |
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Threading Threading |
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Tensile Strength Tensile Strength |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Clamping Action Clamping Action |
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![]() | Hold Down |
Clamp Type Clamp Type |
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![]() | Screw |
Drive Style Drive Style |
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Thread Direction Thread Direction |
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Hardness Hardness |
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Anchor Type Anchor Type |
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![]() | Female Threaded |
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Steel Female-Threaded Anchors for Concrete

A zinc plating provides corrosion resistance in wet environments. Also known as drop-in anchors, these are often used for overhead applications because the anchor's internal plug expands in four directions to hold the anchor firmly inside the hole before inserting a threaded rod or bolt. To install, place the anchor into the hole, insert the required installation tool (sold separately) into the anchor, and drive with a hammer until the thicker portion of the tool makes contact with the anchor. Pull-out strength and shear strength values are 25% of the ultimate values for normal-weight concrete.
Anchors can be installed below the base of the surface as well as flush with the surface. Use those with a coil thread to support temporary concrete formwork. Their threads are shallow and widely spaced for quick threading with a compatible rod or bolt.
For technical drawings and 3-D models, click on a part number.
Strength, lbs. | ||||||||||||
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Thread Size | Lg. | Drill Bit Size | Min. Installation Dp. | Dia. | Thread Dp. | Pull-Out | Shear | Tested In | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Carbon Steel | ||||||||||||
Anchor with Coil Threads | ||||||||||||
3/4"-4 1/2 | 3 3/16" | 1" | 3 3/16" | 1" | 1 3/8" | 2,350 | 3,920 | 4,000 psi Concrete | FM Approved, UL Listed | 1 | 000000000 | 000000 |
Quick-Clamping Coil-Threaded Rods, Screws, and Nuts

Combine fast-threading components to build a clamping assembly. The coil-style threads are shallow and widely spaced for quick threading.
Flange nuts have a large bearing surface to cover holes and resist vibration.
Wing nuts can be fastened by hand.

Thread | |||||||
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Size | Direction | Threading | Lg. | Material | Tensile Strength, psi | Each | |
3/4"-4 1/2 | Right Hand | Fully Threaded | 6 ft. | Steel | 117,000 | 000000000 | 000000 |


Thread | |||||||
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Size | Direction | Wd. | Ht. | Material | Tensile Strength | Each | |
3/4"-4 1/2 | Right Hand | 1 1/8" | 5/8" | Steel | Not Rated | 000000000 | 00000 |

Thread | Flange | Mounting Holes | |||||||||||
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Size | Direction | Wd. | Ht. | Dia. | Thick. | Material | Tensile Strength | Number of | Dia. | Ctr.-to-Ctr. | Mounting Fasteners Included | Each | |
3/4"-4 1/2 | Right Hand | 1 3/16" | 1 5/8" | 4" | 9/32" | Iron | Not Rated | 4 | 5/16" | 2 1/16" | No | 000000000 | 000000 |

Thread | ||||||||
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Size | Direction | Wd. | Ht. | Base Dia. | Material | Tensile Strength | Each | |
3/4"-4 1/2 | Right Hand | 6" | 2 1/2" | 1 3/4" | Iron | Not Rated | 000000000 | 000000 |