Hexagon Slotted Nuts and Castle Nuts

Hex slotted nut or castle nut is a hex nut with opposed slots cut into the top of the nut through the centers of the flats. The slots are on the end opposite the bearing surface. The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. Transhow offers metric coarse and fine pitch thread, UNC and UNF thread as per below standard dimensions.

DIN935-1 (-2/-3) Hexagon slotted nuts grade A, grade B, grade C, DIN937 Slotted hexagon nuts.

ASME/ANSI B18.2.4.3M Metric slotted hex nuts, JIS B1170 Slotted hexagon nuts, DIN797 thin castle nut.

ANSI/ASME B18.2.2 Hex Slotted Nuts, ASME/ANSI B18.2.2 Hex Thick Slotted Nuts, Heavy Hex Slotted Nut.

BS 3692 hexagon slotted and castle nuts style 1-product A and B.

Slotted hex nuts are normally made from carbon steel and alloy steel with grade 2, 5, 8. With a max hardness rockwell C32 and proof load 72,000 psi. Surface treatment could be black oxide, zinc coating, hot dipper galvanizing, black zinc coating, brass coating, nickle and chrome plating, dacomate, etc. Please indicate this requirements with your inquiry.

  • zinc plated hex nutZinc Plated
  • heavy hex nutThin Slotted
  • plain finished nutThick Sloted Nut
  • yzp hex nutYellow Zinc