3/8-24 UNF x 2.1/2 inch Imperial Socket Cap Head Captive Screws (ASME B18.3) - Black Stainless Steel (A2) Description
The 3/8-24 UNF x 2.1/2 inch Imperial Socket Cap Head Captive Screws (ASME B18.3) - Black Stainless Steel (A2) has the following features:
- 0.375 inch Head Length (H)
- 0.182 inch Hexagon Depth (P)
- ASME B18.3 Manufacturing Standard
- 2.1/2 inch Length (L)
- 0.75 inch Thread Length (E)
- Stainless Steel (A2) Material
- Stainless Steel (A2) Material Specification
- Matte Black Finish
- 24 TPI Thread Pitch
- Imperial Metric or Imperial?
- 3/8-24 UNF Thread Size
- 0.562 inch Head Diameter (D)
- 1.75 inch Captive Length
- 0.283 inch Captive Diameter (C)
- +0/-0.012 inch Head Diameter (D) Tolerance
- +0/-0.007 inch Head Length (H) Tolerance
- 5/16 inch Socket Size (J)
Discover more about the Imperial Socket Cap Head Captive Screws range.
Imperial socket cap head captive screws are precision fasteners designed according to imperial measurements. Featuring a cap head with a hexagonal socket drive, they allow for high torque and secure fastening. The captive screw design ensures the screw remains attached to a panel or assembly even when loosened, enhancing safety and preventing loss of components in sensitive environments. This is achieved through an unthreaded section beneath the head that meets industry standards for captive hardware.
How Imperial Socket Cap Head Captive Screws Work
These screws are essential in applications requiring frequent assembly and disassembly, such as machinery maintenance, aerospace equipment and electronics enclosures. For instance, in industrial machinery, captive screws prevent loss during maintenance, allowing personnel to access internal components without misplacing fasteners as they can be loosened yet still stay attached to the panel. The hex socket drive enables precise tightening with an Allen key, ensuring consistent torque and reducing the risk of over-tightening that could damage threads or components.
Materials Imperial Socket Cap Head Captive Screws Are Made From
Our imperial cap head captive screws are crafted from high-quality A2 and A4 stainless steel. A2 offers excellent corrosion resistance, ideal for general indoor applications. A4, or marine-grade stainless steel, provides superior resistance to chemicals and saltwater, making it perfect for marine, chemical processing and outdoor use. Selecting the appropriate material ensures longevity and reliability in specific environments.
Size and Type Imperial Socket Cap Head Captive Screws Available
Accu offers a wide range of sizes to meet various engineering needs, with thread sizes from 0-80 UNF to 1"-8 UNC and lengths from 1/4" to 12". Each screw features a cap head design with a hex socket drive for ease of use and consistent torque application. Along with the standard untreated finish, we also offer specialist finishes are available such as AccuBlack chemical blackeneing which provides a sleek matte black appearance for aesthetic purposes or to reduce reflections in sensetive equipment. We also offer AccuLock thread locking patches pre-appled which prevents loosening due to vibration, essential for machinery and automotive uses.
In addition to imperial sizes, we also offer metric socket cap head captive screws for projects requiring metric measurements.
