About Flat Head Screws
More
About Rounded Head Screws
More
About Socket Head Screws
More
Torx Alloy Steel Socket Head Screws


A Torx-Plus drive has more points of contact than a hex drive, allowing you to tighten these screws with less slippage or damage to the recess. With a tensile strength of 180,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Their black-oxide finish provides mild corrosion resistance in dry environments. They can be used with both Torx-Plus and standard Torx tools (see Torx bits and Torx keys and drivers). Screws meet ASTM A574 specifications and testing requirements for material quality. Length is measured from under the head.
Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Lg. | Threading | Thread Spacing | Dia. | Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | ||||||||||
5/16"-18 | ||||||||||
3/4" | Fully Threaded | Coarse | 15/32" | 5/16" | IP45 | 180,000 | ASTM A574 | 50 | 000000000 | 000000 |
7/8" | Fully Threaded | Coarse | 15/32" | 5/16" | IP45 | 180,000 | ASTM A574 | 25 | 000000000 | 0000 |
1" | Fully Threaded | Coarse | 15/32" | 5/16" | IP45 | 180,000 | ASTM A574 | 25 | 000000000 | 0000 |
1 1/4" | Fully Threaded | Coarse | 15/32" | 5/16" | IP45 | 180,000 | ASTM A574 | 25 | 000000000 | 00000 |
1 1/2" | Fully Threaded | Coarse | 15/32" | 5/16" | IP45 | 180,000 | ASTM A574 | 25 | 000000000 | 00000 |
5/16"-24 | ||||||||||
1 1/4" | Fully Threaded | Fine | 15/32" | 5/16" | IP45 | 180,000 | ASTM A574 | 25 | 000000000 | 00000 |
Alloy Steel Button Head Torx Screws


Made from alloy steel, these screws are three times stronger than standard steel button head Torx screws. A Torx-Plus drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess. For Torx tools, see Torx and Torx-Plus bits, keys, and drivers. Torx-Plus screws can be used with both Torx-Plus and Torx tools. Length is measured from under the head.
Black-oxide alloy steel screws are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Drive | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Lg. | Threading | Head Dia. | Head Ht. | Style | Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | ||||||||||
3/8"-16 | ||||||||||
1/2" | Fully Threaded | 0.656" | 0.199" | Torx Plus | IP45, T45 | 120,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 000000 |
3/4" | Fully Threaded | 0.656" | 0.199" | Torx Plus | IP45, T45 | 120,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 00000 |
1 1/4" | Fully Threaded | 0.656" | 0.199" | Torx Plus | IP45, T45 | 120,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 00000 |
Alloy Steel Torx Flat Head Screws


Made from alloy steel, these screws are twice as strong as standard steel Torx flat head screws. A Torx-Plus drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess. For Torx tools, see Torx and Torx-Plus bits, keys, and drivers. These screws can be used with both Torx-Plus and Torx tools. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
3/8"-16 | |||||||||
1/2" | Fully Threaded | 0.781" | 0.234" | IP45, T45 | 140,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 000000 |
3/4" | Fully Threaded | 0.781" | 0.234" | IP45, T45 | 140,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 00000 |
1" | Fully Threaded | 0.781" | 0.234" | IP45, T45 | 140,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 00000 |
1 1/2" | Fully Threaded | 0.781" | 0.234" | IP45, T45 | 140,000 | ASME B18.3, ASTM F835 | 25 | 000000000 | 00000 |
2" | Fully Threaded | 0.781" | 0.234" | IP45, T45 | 140,000 | ASME B18.3, ASTM F835 | 10 | 000000000 | 00000 |