HERE WE HAVE FOUR ROUND SLOT HEAD SCREWS, THESE ARE 5/16" BSW AND 2" LONG, 

FINISH---SELF COLOUR UNPLATED

BRITISH STANDARD WHITWORTH

SIMILAR TO UNC

90g

I WILL ENDEAVOUR TO POST WITHIN THREE WORKING DAYS.   I WILL ENDEAVOUR TO POST WITHIN THREE WORKING DAYSI WILL ENCLOSE AN INVOICE WITH EACH ORDER BUT SORRY I AM NOT REGISTERED FOR VAT