1/4-20 UNC x 1/2 Inch T30 Torx Countersunk Screws (ASME B18.6.3) -Black Stainless Steel (A2) Description
The 1/4-20 UNC x 1/2 Inch T30 Torx Countersunk Screws (ASME B18.6.3) -Black Stainless Steel (A2) has the following features:
- ASME B18.6.3 Manufacturing Standard
- 1/2 inch Length (L)
- T30 Torx Size
- Stainless Steel (A2) Material
- Stainless Steel (A2) Material Specification
- Matte Black Finish
- 20 TPI Thread Pitch
- Imperial Metric or Imperial?
- 1/4-20 UNC Thread Size
- 0.153 inch Countersunk Length (H)
- 82 Degrees Countersunk Angle (CA)
- 0.477 inch Head Diameter (Max) (D)
- +0/-2 Degrees Countersunk Angle (CA) Tolerance
- +0/-0.035 inch Head Diameter (Max) (D) Tolerance
Discover more about the Imperial Torx Countersunk Screws range.
Imperial Torx Countersunk Screws, characterised by their Torx drive system and countersunk head design, belong to the elite class of precision engineering screws. With a thread configuration based on the imperial measurement system, these screws are optimally suited for applications requiring close adherence to the inch-based specifications prevalent in industries like aerospace and heavy machinery. The Torx drive, or star drive, ensures superior engagement with the driver tool, leading to optimal torque transmission and diminished tool wear.
How Imperial Torx Countersunk Screws Work
Imperial Torx Countersunk Screws secure materials through a sophisticated mechanism. Upon drilling a countersunk hole in the material, these screws are driven in. As they tighten, the conical underside of the screw head aligns with the tapered hole, resulting in a flush or sub-flush finish. This eliminates potential protrusions, reducing snagging incidents in high-speed or high-wear applications. The Torx drive's six-point star shape facilitates precise engagement with the driver tool, virtually eliminating cam-out, even under high torque.
What Material Are Imperial Torx Countersunk Screws Made From?
For the perfect blend of strength and corrosion resistance, Accu's Imperial Torx Countersunk Screws are crafted from A2 Stainless Steel. This austenitic, chromium-nickel steel alloy is known for its considerable corrosion resistance, attributable to the formation of a protective, passive oxide layer when exposed to atmospheric conditions. It also offers good mechanical properties, ensuring the screws maintain their structural integrity under diverse environmental influences.
What Size and Type Imperial Torx Countersunk Screws Are Available?
Accu offers Imperial Torx Countersunk Screws in a wide range of sizes to fit your specific engineering requirements. From the smallest 1/4-20 (where 1/4 inch is the major diameter and 20 is the number of threads per inch) for light-duty applications to the larger 10-32 for heavy-duty fastening tasks, we ensure that you have the precise component to match your project parameters. Each of these sizes complies with ASME B1.1, the standard that governs the dimensions of imperial screws and threads.
Accu offers a variety of finishes on our Imperial Torx Countersunk Screws to enhance their performance and aesthetic appeal. Our AccuBlack service provides a non-reflective matte black finish that not only elevates the screws' visual appeal but also offers additional corrosion resistance, making them suitable for applications requiring both subtlety and durability.
In addition, we provide thread-locking patches as an option for your screws. Thread locking, or thread locking patches, are pre-applied adhesive coatings that, when engaged with a mating thread, resist loosening under vibrations and thermal expansions. This makes the screws particularly useful in high-vibration environments where fastener security is paramount.
FAQs
Q: What makes Imperial Torx Countersunk Screws better than other screw types?
A: Their unique combination of Torx drive and countersunk head brings dual benefits – optimal torque transmission and a clean, flush finish, making them a superior choice for precision-oriented applications. The use of an imperial thread adds compatibility with industries that mandate inch-based standards.
Q: Can these screws hold up in harsh outdoor environments?
A: Yes, the A2 Stainless Steel construction of our Imperial Torx Countersunk Screws delivers exceptional resistance to atmospheric corrosion, ensuring their reliable performance in both interior and exterior applications.
Q: What tools are required for the installation of Imperial Torx Countersunk Screws?
A: To install these screws, a Torx screwdriver or bit matching the screw's Torx size is needed. These provide a secure engagement with the screw head, ensuring efficient torque application without the risk of cam-out or tool wear.
Q: How do I select the right size of Imperial Torx Countersunk Screw for my project?
A: The appropriate screw size would be governed by the specifics of your project, including the thickness, type of material, and the load-bearing requirements. Remember, in the 1/4-20 or 10-32 size specifications, the first number indicates the major diameter (in inches), and the second denotes the thread count per inch.
Q: Does Accu enforce a minimum order quantity for Imperial Torx Countersunk Screws?
A: No, Accu caters to a wide array of customer needs, allowing the flexibility to order anything from a single unit to bulk quantities, ensuring you receive precisely the number of components your project requires.
