About

Castle Nuts / Slotted Nuts - Din 935

A Castle nut / slotted nut also know as a castelated nut has slots cut into one end of the nut .  When used in application the bolt or threaded bar generally has a predrilled hole so when the castle nut / slotted nut is threaded onto the bolt or threaded bar and torqued to the required position it can then be secured using a cotter pin or wire to prevent rotation.  Thus castel nuts / slotted nuts are used in applications where vibration or motion could undo the nut.

Although both the Castle nut and Slotted nut look the same and have almost identical dimensions the main difference is the thickness of the nut, as the Castle nut is approximately 10% thicker than the slotted nut.
Castle nuts / Slotted nuts generally manufactured from steel grade 4, 8 and 10 and Stainles Steel A2 & A4.
BSF, BSW, UNC & UNF are available from 1/4" to 3" with orther sizes made to order.

Fastenright Ltd holds various sizes of Castle and Slotted nuts in stock, available in grades 4, 8 and 10 and are usually delivered within 2 days.

Our Grade 8 Castle & Slotted nuts are stocked ranging from M12 to M24 in a self colour finish,  manufactured to BS3692 and are available for next day deivery.

Other sizes and materials are avaialable and those sizes not currently in stock are manufactured to order with shot leadtimes (from 2/3 days).

BSF, BSW, UNC & UNF are available from 1/4" to 3" with orther sizes made to order.

Please send you enquiries to fastenright@aol.com or alternatively call +44 (0) 1902 457734 and our sales team will assist with your requirements.

Video

Technical Drawing