Fixaball BSW 5/16" Socket Screw Countersunk High Tensile 10.9 BS 2470

For flush-fitting fastening in Whitworth threaded applications, this Fixaball countersunk socket screw/bolt is made in high tensile steel grade 10.9 with a self colour finish. It has a 5/16" BSW thread with 18 T. P. I. and conforms to BS 2470.

The countersunk head sits flush when fully tightened and is driven using an Allen/hex key. Length is measured from the tip to the top. Shorter lengths are fully threaded, while longer sizes are partially threaded with an unthreaded shoulder under the head.

Available options

• 5/16"-18 x 1/2" (FT)
• 5/16"-18 x 5/8" (FT)
• 5/16"-18 x 3/4" (FT)
• 5/16"-18 x 2" (PT)
• 5/16"-18 x 2 1/2" (PT)
• 5/16"-18 x 2 3/4" (PT)

Key features

• 5/16" BSW Whitworth thread
• 18 T. P. I. coarse pitch
• High tensile steel grade 10.9
• Self colour finish
• Allen/hexagon socket countersunk head
• Conforms to BS 2470
• Allen hexagon key size: 3/16"

Specifications

• Fully threaded lengths are supplied as sets
• Partially threaded lengths have an unthreaded shoulder under the head
• Corrosion resistance: low, without further surface treatment
• Typical application: no exposure to moisture
• Typical application: often greased/oiled

Sizing

• 5/16"-18 x 1/2"
• 5/16"-18 x 5/8"
• 5/16"-18 x 3/4"
• 5/16"-18 x 2"
• 5/16"-18 x 2 1/2"
• 5/16"-18 x 2 3/4"

Rackhams Reference : Y8HMTCY29Q