HERE WE HAVE SIX 3/8" BSW X 4" LONG HEX HEAD BOLTS

HEAD MARKINGS---R O [MAKER]---R[GRADE]

16 THREADS PER INCH

BRITISH STANDARD WHITWORTH   SIMILAR TO 3/8" UNC

ZINC PLATED

410g

I WILL ENDEAVOUR TO POST WITHIN THREE WORKING DAYS.           SORRY I AM NOT REGISTERED FOR VAT