Fixaball UNC 4/40 Socket Cap Screw High Tensile 12.9 Self Colour DIN912

For imperial-thread fastening applications, this Fixaball UNC 4/40 socket cap screw is supplied in high tensile steel, grade 12.9, with a self-colour finish. The cylindrical cap head features a hexagon socket for use with an Allen key, and the range includes both fully threaded and partially threaded lengths.

Conforming to ASME/ ANSI B18. 3 1960 Series, it suits installations requiring a Unified National Coarse thread form. The self-colour black finish has no surface treatment and offers low corrosion resistance, making it suitable for use where there is no exposure to moisture and where components are often greased or oiled.

Available options

• #4-40 x 3/8in, fully threaded
• #4-40 x 1/2in, fully threaded
• #4-40 x 5/8in, fully threaded
• #4-40 x 3/4in, fully threaded
• #4-40 x 1in, partially threaded

Key features

• UNC 4/40 thread
• High tensile steel, 12.9 grade
• Self-colour black finish with no surface treatment
• Hexagon socket cap head
• Conforms to ASME/ ANSI B18. 3 1960 Series

Specifications

• Diameter: No. 4
• UNC: 40
• UNF: 48
• a Max: 0. 18
• ds Max: 0. 11
• h Max: 0. 11
• j Nom: 5/16

Safety information

• Low corrosion resistance without further surface treatment.
• Use where there is no exposure to moisture.

Rackhams Reference : UJNR1TUQM3