METRIC DIN 439 ISO 4035 BS 3692
ALSO KNOWN AS - THIN NUTS AND HALF NUTS.GRADE 4 STEEL ZINC PLATED.
GRADE A2 = 304 STAINLESS STEEL.
GRADE A4 = 316 STAINLESS STEEL.
ALSO AVAILABLE IN - SELF COLOUR, BRASS.
UNC SELF COLOUR, ZINC PLATED, STAINLESS STEEL.
UNF SELF COLOUR, ZINC PLATED, STAINLESS STEEL.
BSF NON-PERFERRED CHECK AVAILABILITY.
WHITWORTH NON-PERFERRED CHECK AVAILABILITY.