Seept 120-Piece Cotter Pin Assortment, 304 Stainless Steel, 6 Sizes

Why it’s worth it

For tractor hitch, truck, and engine repair jobs, having cotter pins in several sizes on hand makes it easier to choose a retaining pin for the assembly at hand. This Seept assortment brings together 120 pins in six sizes in a storage box, ready for mechanical fastening tasks.

The pins are made from 304 stainless steel with a polished, smooth surface. That material and finish suit a practical assortment for securing bolts and pins while helping reduce snags against surrounding components.

Rather than buying one size at a time, this kit offers a range for different repair and maintenance needs. Buyers also describe the assortment as useful to keep on hand and appreciate having multiple sizes available.

Key features

The 120-piece set contains six size-and-quantity combinations: M1.6 x 25 (30 pieces), M2.5 x 25 (30), M2.5 x 30 (20), M3.2 x 30 (20), M3.2 x 40 (10), and M4 x 60 (10). This mix gives you options for mechanical work involving different bolt and pin dimensions, whether you are organizing a repair kit or handling occasional equipment maintenance.

Each pin is a cotter-style fastener intended to help secure bolts and pins. The selection is relevant to applications such as hitch pin locking, truck repairs, and engine work. The assortment is supplied in a plastic box, keeping the different sizes together between jobs.

In buyer feedback, customers commonly highlight the range of sizes and the kit’s usefulness for assorted tasks. Some also describe the pins as holding their shape during use. Opinions about appearance are mixed, so the practical reasons to choose this set are its stainless steel construction and varied size selection rather than a particular visual presentation.

Usage tips

Before installing a pin, identify the size needed for the bolt or pin assembly and select the matching option from the box. The set includes several lengths and diameters, so keeping the pins organized by their marked size can make it easier to find the appropriate one for a future repair. For hitch, vehicle, or engine work, use the pin as part of the relevant retaining setup and ensure it is seated as intended for that assembly.

The range is useful for a home workshop, equipment upkeep, or a repair kit that needs more than a single cotter pin size. If your work repeatedly calls for one specific size, a single-size supply is another way to stock a bench, this assortment is suited to jobs where having several options together is more useful.

Questions before you buy

What sizes are included? The kit contains M1.6 x 25, M2.5 x 25, M2.5 x 30, M3.2 x 30, M3.2 x 40, and M4 x 60 pins, with quantities ranging from 10 to 30 pieces per size.

What are the pins made of? They are made from 304 stainless steel and have a polished finish.

What jobs can this assortment support? It is intended for securing bolts and pins in mechanical applications, including tractor hitch locking, truck work, and engine repair. Choose the pin size appropriate to the assembly.

When it makes sense

This set is a practical fit for people who handle varied fastening and repair tasks and want multiple cotter pin sizes in one box. Its 304 stainless steel construction, six size options, and 120-piece assortment make it useful for keeping common retaining-pin choices close at hand for workshop maintenance, vehicle work, and equipment repairs.