Fixaball UNF 7/16" Socket Screw Countersunk High Tensile 10.9 DIN7991

For flush-fitting fastening in UNF applications, this Fixaball countersunk socket screw features a 7/16" diameter with a 20 T. P. I. fine pitch thread. Made in high tensile Grade 10.9 steel with a self colour finish, it uses an Allen hex socket drive and conforms to ISO 10642, B18. 3, and BS 2470.

Available in a choice of lengths, the countersunk head sits flush with the connecting surface when fully tightened. Length on this fixing is measured from the tip to the top.

Available options

• 7/16"-20 x 3/4" (FT)
• 7/16"-20 x 1" (FT)
• 7/16"-20 x 1 1/4" (FT)
• 7/16"-20 x 1 1/2" (FT)
• 7/16"-20 x 1 3/4" (FT)
• 7/16"-20 x 2" (FT)
• 7/16"-20 x 2 1/2" (PT)

Key features

• 7/16" UNF thread
• 20 T. P. I. fine pitch
• High tensile steel, Grade 10.9
• Self colour finish
• Allen hex socket drive
• Countersunk head
• Conforms to ISO 10642, B18. 3, and BS 2470

Specifications

• UNF thread form with 60 degree flank angle, rounded roots and flat crests
• For a given diameter, UNF has a smaller thread pitch than an equivalent diameter UNC thread
• Self-colour (black) appearance
• Level of corrosion resistance: low, without further surface treatment
• Typical application: no exposure to moisture
• Typical application: often greased/oiled

Sizing

Length is measured from the tip to the top.

Rackhams Reference : FL8LYRQPY3