4-40 UNC (1/8 Inch) x 1/2 Inch Ultra Low Head Socket Shoulder Screws - Marine Stainless Steel (A4) Description
The 4-40 UNC (1/8 Inch) x 1/2 Inch Ultra Low Head Socket Shoulder Screws - Marine Stainless Steel (A4) has the following features:
- 3/64 inch Head Length (H)
- Not Standardised Manufacturing Standard
- 5/32 inch Thread Length (E)
- 1/2 inch Shoulder Length (L)
- Marine Stainless Steel (A4) Material
- 316 Marine Grade Stainless Steel (A4) Material Specification
- Natural Finish
- 40 TPI Thread Pitch
- 4-40 UNC Thread Size
- 1/4 inch Head Diameter (D)
- 1/8 inch Shoulder Diameter (d)
- Imperial Metric or Imperial
- +0/-0.001 inch Shoulder Diameter (d) Tolerance
- 5/64 inch Socket Size (J)
- +0.002/-0 inch Shoulder Length (L) Tolerance
- +0/-0.001 inch Shoulder Diameter (Decimal) (d) Tolerance
- 0.125 inch Shoulder Diameter (Decimal) (d)
Discover more about the Imperial Ultra Low Head Socket Shoulder Screws range.
Imperial Ultra Low Head Socket Shoulder Screws are a distinctive subcategory of machine screws specifically engineered for applications necessitating compact hardware configurations and robust mechanical properties. Their design features an extended cylindrical shoulder beneath an ultra-low socket head, creating a low-profile, precision-engineered fastener. The exceptional compactness of the head is advantageous in space-constrained scenarios where it can be installed flush with the assembly surface, resulting in minimal protrusion.
How Imperial Ultra Low Head Socket Shoulder Screws Work
Functionally, Imperial Ultra Low Head Socket Shoulder Screws thrive on their unique design geometry. The cylindrical shoulder, larger in diameter than the threaded portion, serves as a precise shaft for rotating parts or can be utilised to align mechanical components accurately. The ultra-low socket head facilitates high axial forces while maintaining a reduced form factor. The internal hex drive, known for its efficiency in torque transmission, allows for controlled tightening, making these screws a preferred choice in precision applications such as optical equipment and mechanical assemblies.
What Material Are Imperial Ultra Low Head Socket Shoulder Screws Made From?
Forged from A4 Marine Grade Stainless Steel, Imperial Ultra Low Head Socket Shoulder Screws are optimised for durability and corrosion resistance. This grade of stainless steel is enriched with molybdenum, enhancing its resilience against corrosive agents like chloride, thereby extending its applicability to harsh marine and coastal environments. Accu further extends the product's versatility by offering AccuBlack, a corrosion-resistant, non-reflective matte black finish, and a pre-applied thread locking feature to counter screw loosening due to vibrational or dynamic loads.
What Size and Type Imperial Ultra Low Head Socket Shoulder Screws Are Available?
To ensure we cater to a wide gamut of engineering needs, Accu provides Imperial Ultra Low Head Socket Shoulder Screws in an array of sizes, starting from the minutely threaded No. 2 variant for delicate precision assemblies, to the robust No. 10 type for substantial load-bearing applications. With shoulder diameters ranging from 3/32 inch to 1/4 inch and shoulder lengths from 1/8 inch to 1 inch we're sure our range has something to suit every application.
Accu also offers Metric Ultra Low Socket Shoulder Screws, an excellent alternative for sectors or projects that operate under metric system specifications.
FAQs
Q: What makes Imperial Ultra Low Head Socket Shoulder Screws an optimal choice for precision engineering?
A: With their uniquely low-profile head, extended cylindrical shoulder, and robust A4 Marine Grade Stainless Steel construction, these screws offer a blend of compactness, precision, and durability. They can facilitate high axial loads while keeping the hardware footprint minimal, making them an ideal choice for precision engineering tasks.
Q: How does A4 Marine Grade Stainless Steel enhance the performance of these screws in harsh environments?
A: A4 Marine Grade Stainless Steel is renowned for its excellent resistance to corrosive elements, particularly chloride, a common component in marine and coastal environments. Hence, these screws can withstand harsh conditions, extending their operational life and reducing maintenance requirements.
Q: What kind of tooling is required for Imperial Ultra Low Head Socket Shoulder Screws?
A: Given their internal hex drive design, an Allen key or a hex bit driver, ideally with a torque control feature, would be required for their installation and removal. Accu provides a wide range of compatible tools for these types of screws.
Q: How can I select the correct size of Imperial Ultra Low Head Socket Shoulder Screw for my project?
A: The selection depends on several factors, including the thickness and type of the materials involved, the mechanical load specifications, and the dimensions of the assembly components. A thorough understanding of these parameters will guide you towards the optimal screw size.
Q: Are there any order quantity restrictions for Imperial Ultra Low Head Socket Shoulder Screws at Accu?
A: Accu operates with a flexible order policy, allowing you to order a single unit or bulk quantities of thousands of Imperial Ultra Low Head Socket Shoulder Screws, ensuring we accommodate varying project scopes and requirements.