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About Hex Head Screws and Bolts
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Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Steel Flanged Hex Head Screws
 |
Fully Threaded |
 |
Partially Threaded |
Our most popular flanged hex head screws. These have a flange that spreads pressure over a wide area to protect thin and soft materials. The head's six flat sides keep wrenches and sockets from slipping and rounding off the drive.
Head height includes the flange. Length is measured from under the flange.
Low-Strength Fastener—Suitable for light duty applications, such as securing access panels. These screws have a tensile strength of 60,000 psi and lower.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Hot-Dipped Galvanized Steel—The strength of steel with the rust resistance of stainless steel. These screws are an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. You can only mate these screws with hot-dipped galvanized nuts.
Zinc-Flake-Coated Steel—The coating is tested to extreme standards, including at least 720 hours of salt spray resistance, to hold up in wet and outdoor environments. An embedded lubricant makes these screws easier to install than corrosion-resistant-coated screws.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Flange Dia. | Threading | Thread Spacing | Fastener Strength Grade/Class | Tensile Strength, psi | Pkg. Qty. | Pkg. | |||
Low-Strength Zinc-Plated Steel | ||||||||||||
1/4"-20 | ||||||||||||
| 1/2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 50 | 95031A124 | 00000 | ||
| 3/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 50 | 95031A125 | 0000 | ||
| 1" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 50 | 95031A126 | 0000 | ||
| 2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 25 | 95031A127 | 0000 | ||
3/8"-16 | ||||||||||||
| 3/4" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 25 | 95031A128 | 00000 | ||
| 1" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 25 | 95031A129 | 00000 | ||
| 2" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A131 | 0000 | ||
| 3" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A132 | 00000 | ||
1/2"-13 | ||||||||||||
| 1" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A133 | 00000 | ||
| 1 1/2" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A134 | 0000 | ||
| 2" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A135 | 00000 | ||
| 3" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 5 | 95031A136 | 0000 | ||
Low-Strength Hot-Dipped Galvanized Steel | ||||||||||||
3/8"-16 | ||||||||||||
| 3/4" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 25 | 95031A115 | 00000 | ||
| 1" | 9/16" | 25/64" | 13/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 25 | 95031A116 | 00000 | ||
| 2" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A117 | 00000 | ||
| 3" | 9/16" | 25/64" | 13/16" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A118 | 00000 | ||
1/2"-13 | ||||||||||||
| 1" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A119 | 00000 | ||
| 1 1/2" | 3/4" | 33/64" | 1 5/64" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A121 | 00000 | ||
| 2" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 10 | 95031A122 | 00000 | ||
| 3" | 3/4" | 33/64" | 1 5/64" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 5 | 95031A123 | 00000 | ||
Low-Strength Zinc-Flake-Coated Steel | ||||||||||||
1/4"-20 | ||||||||||||
| 1/2" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 50 | 95031A111 | 00000 | ||
| 3/4" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 50 | 95031A112 | 00000 | ||
| 1" | 3/8" | 9/32" | 9/16" | Fully Threaded | Coarse | SAE Grade 2 | 60,000 | 50 | 95031A113 | 00000 | ||
| 2" | 3/8" | 9/32" | 9/16" | Partially Threaded | Coarse | SAE Grade 2 | 60,000 | 25 | 95031A114 | 00000 | ||
