Male Brake Nuts 1/2″ UNF x 17mm – Part Thread – 25 Pack £19.40 Male Brake Nuts 1/2" UNF x 17mm – Part Thread - 25 Pack quantity Add to cart Description Reviews () Description Ø x Pitch 1/2″ UNF x 20 TPI Length : 17mm For 1/4″ pipe. Pack of : 25 Related products Add to cart Male Brake Nuts 7/16″ UNF x 23mm – Part Thread – 25 Pack £19.12 Add to cart Male Brake Nuts Imperial 3/8″ BSF x 23.5mm – Long Part Thread – 50 Pack £15.42 Add to cart Male Brake Nuts 3/8″ UNF x 23.4mm – 50 Pack £24.25 Add to cart Male Brake Nuts 7/16″ UNF x 21.5mm – Part Thread – 50 Pack £26.64