(38) A type of slotted nut. Has slots which are cut equal in length to the slot depth and slightly smaller in diameter than the hex width.
Used for general purpose fastening and locking. Just insert a cotter pin or safety wire through the slots and through the drilled shank of the fastener.
(36) A heavy hex nut made of alloy steel, manufactured in accordance with ASTM Standard A563 Grade C.
The strongest of all the comparably-graded nut designs because of its greater length of thread engagement and greater resistance to dilation (widening or stretching).
(16) A heavy hex nut made of alloy steel, manufactured in accordance with ASTM Standard A563 Grade D.
The strongest of all the comparably-graded nut designs because of its greater length of thread engagement and greater resistance to dilation (widening or stretching).
(30) A heavy hex nut made of alloy steel, manufactured in accordance with ASTM Standard A563 Grade DH.
The strongest of all the comparably-graded nut designs because of its greater length of thread engagement and greater resistance to dilation (widening or stretching).
(300) A six-sided internally threaded fastener which is both thicker and wider across the flats than a finished hex nut.
The strongest of all the comparably-graded nut designs because of its greater length of thread engagement and greater resistance to dilation (widening or stretching).
(18) A six-sided nut pre-assembled with a free spinning external tooth lock washer. The locking action is achieved when the nut is tightened against a bearing surface as the teeth of the lock washer dig into it. (Note: the origin of the word came from ShaKEProof.)
A popular type of lock nut because of its versatility, cost, and ease of installation. Does not gall screw threads.
(66) Typically a six-sided internally threaded fastener with a flat top and chamfered corners. Threads are Unified, Class 2B, UNC or UNF Series. (Also available as a four-sided, internally threaded fastener with a flat top and bottom, without chamfer. Threads are unified, Class 2B, UNC Series.)
Designed for use with machine screws. However, user interest in square machine screw nuts has declined significantly during the past several years.
(84) A six-sided internally threaded fastener with metric thread pitch. 16 millimeter nuts and smaller are chamfered on the top and the bearing surface. Larger nuts may be double chamfered, or have a washer face on one side and a chamfered surface on the opposite side. Generally manufactured in accordance with DIN Standard 934 or ISO Standard 4032.
(24) A six-sided nut with a nylon-filled collar at its back end and metric thread pitch. When a bolt or screw reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the fastener when it is subjected to vibration. Generally manufactured in accordance with DIN Standard 985.
(155) A six-sided internally threaded fastener with metric thread pitch. 16 millimeter nuts and smaller are chamfered on the top and the bearing surface. Larger nuts may be double chamfered, or have a washer face on one side and a chamfered surface on the opposite side. Generally manufactured in accordance with DIN Standard 934 or ISO Standard 4032.
(77) A six-sided nut with a nylon-filled collar at its back end and metric thread pitch. When a bolt or screw reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the fastener when it is subjected to vibration. Generally manufactured in accordance with DIN Standard 985.
(401) A six-sided nut with a nylon-filled collar at its back end. When a bolt or screw reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the fastener when it is subjected to vibration.
Less expensive than all metal lock nuts, but will begin to deteriorate at temperatures from 150-350°F.
(115) A one-piece hex nut which derives its prevailing torque characteristics from controlled distortion of its top threads from their normal helical form to a more elliptical shape.
Frequently used in farm machinery, plus in the automotive and metalworking industries. Can withstand severe vibration and shock loads. Reusable and can withstand temperatures of up to 450°F.
