Help on screw size

[rick]

Trying to identify a machine screw.

Certainly not metric ... can anybody help identify the thread ...

OD is 0.156" so assume its a 5/32"

Pitch is 36

That is a fine pitch


Only thing I can find that matches is No #8 UNF not sure if I can get
one of those in UK (feel free to point me somewhere if you know)

[Clifford Coggin]

Post by rick
Trying to identify a machine screw.
Certainly not metric ... can anybody help identify the thread ...
OD is 0.156"     so assume its a 5/32"
Pitch is 36
That is a fine pitch
Only thing I can find that matches is No #8 UNF   not sure if I can get
one of those in UK  (feel free to point me somewhere if you know)

UNF looks to be the closest. You can get them from

https://www.westfieldfasteners.co.uk/A4_ScrewBolt_HexHd_UNFine0.3125_THRfull.html