System of Measurement System of Measurement |
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Anchor Type Anchor Type |
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 | Tapping Screw |
Head Type Head Type |
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Thread Length Thread Length |
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Material Material |
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Finish Finish |
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Tip Type Tip Type |
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 | Blunt |
Drive Style Drive Style |
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Removable Removable |
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Pull-Out Strength Pull-Out Strength |
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Drill Bit Decimal Size Equivalent Drill Bit DecimalSize Equivalent |
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Shear Strength Shear Strength |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Heavy Duty Hex Head Tapping Screws for Concrete, Block, and Brick
Zinc-Plated 410 Stainless Steel
Zinc-Plated Steel
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.
410 stainless steel screws are strong, wear resistant, mildly chemical resistant, and magnetic. They have a zinc plating that adds extra corrosion resistance
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.
For technical drawings and 3-D models, click on a part number.
Head | Strength, lbs. | ||||||||||||
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| Lg. | Screw Size | Drill Bit Size | Thread Lg. | Min. Installation Dp. | Wd. | Ht. | Pull-Out | Shear | Tested In | Drive Style | Pkg. Qty. | Pkg. | |
Zinc-Plated 410 Stainless Steel | |||||||||||||
5/16" Dia. | |||||||||||||
| 2 1/2" | 3/8" | 5/16" | 2 1/4" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 3" | 3/8" | 5/16" | 2 5/8" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 4" | 3/8" | 5/16" | 3 5/8" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 5" | 3/8" | 5/16" | 3 5/8" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
7/16" Dia. | |||||||||||||
| 3" | 1/2" | 7/16" | 2 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 4" | 1/2" | 7/16" | 3 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 5" | 1/2" | 7/16" | 4 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||||||
1/4" Dia. | |||||||||||||
| 1 1/4" | 1/4" | 1/4" | 1 1/4" | 1" | 7/16" | 5/16" | 380 | 480 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 0000 |
| 1 3/4" | 1/4" | 1/4" | 1 5/8" | 1" | 7/16" | 5/16" | 380 | 480 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 0000 |
| 2 1/4" | 1/4" | 1/4" | 1 5/8" | 1" | 7/16" | 5/16" | 380 | 480 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 0000 |
| 2 5/8" | 1/4" | 1/4" | 2 1/2" | 1" | 7/16" | 5/16" | 380 | 480 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 0000 |
| 3" | 1/4" | 1/4" | 2 1/2" | 1" | 7/16" | 5/16" | 380 | 480 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 00000 |
5/16" Dia. | |||||||||||||
| 1 3/4" | 3/8" | 5/16" | 1 1/2" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 00000 |
| 2 1/2" | 3/8" | 5/16" | 2 1/4" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 00000 |
| 3" | 3/8" | 5/16" | 2 5/8" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 10 | 000000000 | 00000 |
| 4" | 3/8" | 5/16" | 3 5/8" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
| 5" | 3/8" | 5/16" | 3 5/8" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
3/8" Dia. | |||||||||||||
| 6" | 3/8" | 3/8" | 3 1/4" | 1 1/2" | 9/16" | 3/8" | 490 | 850 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
7/16" Dia. | |||||||||||||
| 3" | 1/2" | 7/16" | 2 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
| 4" | 1/2" | 7/16" | 3 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
| 5" | 1/2" | 7/16" | 4 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
| 6" | 1/2" | 7/16" | 5 3/4" | 2 1/2" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
1/2" Dia. | |||||||||||||
| 2" | 1/2" | 1/2" | 1 3/4" | 1 3/4" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
| 2 1/2" | 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 | 000000000 | 00000 |
| 3" | 5/8" | 1/2" | 2 1/2" | 2 3/4" | 13/16" | 5/8" | 1,900 | 3,300 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 4" | 5/8" | 1/2" | 3 1/2" | 2 3/4" | 13/16" | 5/8" | 1,900 | 3,300 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 5" | 5/8" | 1/2" | 4 1/2" | 2 3/4" | 13/16" | 5/8" | 1,900 | 3,300 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 6" | 5/8" | 1/2" | 5 1/2" | 2 3/4" | 13/16" | 5/8" | 1,900 | 3,300 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 8" | 1/2" | 1/2" | 4 1/4" | 1 3/4" | 3/4" | 7/16" | 1,000 | 1,800 | 4,000 psi Concrete | External Hex | 4 | 000000000 | 00000 |
5/8" Dia. | |||||||||||||
| 4 1/2" | 3/4" | 5/8" | 3 7/8" | 3 1/4" | 15/16" | 7/8" | 3,100 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 5 1/2" | 3/4" | 5/8" | 4 5/8" | 3 1/4" | 15/16" | 7/8" | 3,100 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 6 1/4" | 3/4" | 5/8" | 4 5/8" | 3 1/4" | 15/16" | 7/8" | 3,100 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 8" | 5/8" | 5/8" | 5" | 2 1/2" | 13/16" | 5/8" | 1,800 | 3,300 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
3/4" Dia. | |||||||||||||
| 3" | 3/4" | 3/4" | 3" | 2 1/2" | 1 1/8" | 7/8" | 2,700 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 4" | 3/4" | 3/4" | 3" | 2 1/2" | 1 1/8" | 7/8" | 2,700 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 5" | 3/4" | 3/4" | 4 1/4" | 2 1/2" | 1 1/8" | 7/8" | 2,700 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 6" | 3/4" | 3/4" | 4 1/4" | 2 1/2" | 1 1/8" | 7/8" | 2,700 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 0000 |
| 8" | 3/4" | 3/4" | 4 1/4" | 2 1/2" | 1 1/8" | 7/8" | 2,700 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |
| 10" | 3/4" | 3/4" | 4 1/4" | 2 1/2" | 1 1/8" | 7/8" | 2,700 | 3,500 | 4,000 psi Concrete | External Hex | 1 | 000000000 | 00000 |