Split pins, also known as cotter pins, are often used in conjunction with castellated nuts or castle nuts. Those nuts have slots or notches that the split pin can be inserted into to prevent the nut from loosening. They are commonly used in automotive, aerospace, and marine applications, as well as in construction and industrial settings.

They consist of a straight metal pin with two tines or legs on one end and a loop on the other. The tines are bent back and inserted through a hole or slot in the components to be joined and then spread apart to prevent the pin from coming out. The loop end of the pin can be used to secure the split pin with a safety wire or to provide a point of leverage for insertion and removal. Overall, split pins are a simple and effective way to secure two components together, and their versatility and reliability have made them a staple of many industries.

Technical Information

Material: Stainless Steel

Finish: BZP

Quantity: Pack of 50, 100 or 200

Variants:

SKU	Size
GTSE-PIN-S-1161	1/16 x 1"
GTSE-PIN-S-18214	1/8 x 2.1/4"
GTSE-PIN-S-964112	9/64 x 1.1/2"
GTSE-PIN-S-532158	5/32 x 1.5/8"
GTSE-PIN-S-5323	5/32 x 3"
GTSE-PIN-S-11642	11/64 x 2"
GTSE-PIN-S-3162	3/16 x 2"
GTSE-PIN-S-3163	3/16 x 3"
GTSE-PIN-S-732234	7/32 x 2.3/4"
GTSE-PIN-S-7323	7/32 x 3"
GTSE-PIN-S-143	1/4 x 3"
GTSE-PIN-S-1162	1/16 x 2"
GTSE-PIN-S-5163	5/16 x 3"
GTSE-PIN-S-5641	5/64 x 1"
GTSE-PIN-S-564112	5/64 x 1.1/2"
GTSE-PIN-S-332112	3/32 x 1.1/2"
GTSE-PIN-S-3322	3/32 x 2"
GTSE-PIN-S-764112	7/64 x 1.1/2"
GTSE-PIN-S-7642	7/64 x 2"
GTSE-PIN-S-18112	1/8 x 1.1/2"