L Pattern screw

[Chippendale]

Hoping somebody can help me, I have a 1927/32 BSA L pattern, it has three screws on trigger block, pointing the gun forward as if shooting they are on the left hand side. Looking at the screws I have lost the one on the left of the three.
I have looked in Knibbs and Protek, they have none advertised.
Has anybody got one they can sell me or can anybody tell me the size and what thread it will be.
Thanks in advance.
Cheers
Melv

Chippendale. (With clothes on)

[Binners]

Hoping somebody can help me, I have a 1927/32 BSA L pattern, it has three screws on trigger block, pointing the gun forward as if shooting they are on the left hand side. Looking at the screws I have lost the one on the left of the three.
I have looked in Knibbs and Protek, they have none advertised.
Has anybody got one they can sell me or can anybody tell me the size and what thread it will be.
Thanks in advance.
Cheers
Melv

Chippendale. (With clothes on)

Give me a few days and I will check the sulking shed spares box.

[Chippendale]

Thank you Pete

Melv

Chippendale (with clothes on)