4-40 UNC x 7/16 Inch Socket Cap Head Screw, A2 Stainless Steel (ASME B18.3)

4-40 socket cap head screw

Socket cap head screw designed with a deep internal socket allowing application of the required torque for a secure assembly in construction, machinery, and automotive applications.

Manufactured in A2 stainless steel for a high level of corrosion resistance making them a versatile choice for internal and external applications.

Designed with a distinctive compact cylindrical head which makes them useful when space is tight and installed with an Allen wrench or hex key (Allen key) sees them widely used across many industries.

A versatile corrosion resistant machine screw also known in the trade as Allen key bolts, cap head bolts, or socket screws.

Available in many sizes and lengths, these screws are used by DIY enthusiasts and professionals across many diverse sectors including automotive, aerospace, machinery, and construction.

4-40 socket cap head screw specification:

• Diameter (TD): 4-40
  
• Threads per inch (TPI): 40
  
• Length (L): 7/16 inch
  
• Thread length (TL): 0.75 inch min - 0.99 inch max
  
• Head width (HW): 0.183 inch max
  
• Head height (HH): 0.112 inch max
  
• Head type: Cap head
  
• Recess type (DT): Internal hex drive (3/32 inch)
  
• Material: A2 stainless steel (high level of corrosion resistance)
  
• Conformity: ASME  B18.3

A socket head cap screw, part of an extensive range of stainless-steel cap head screws available from Fusion Fixings with bulk discounts.

Why choose Fusion Fixings?

A family run business with over 40 years of experience in the construction and fixings industry. Our aim is to bring you a range of quality, reliable, fixings and fasteners at great prices.

With many ranges held in stock and quantities starting from just one to as many as you require, with bulk price offers across many of our products.