Split Cotter Ring 1–2mm Hairpin — A2 Stainless Steel
Reusable split cotter ring in stainless steel — also known as a hairpin cotter, coiled split pin or ring cotter. The sprung double-coil design pushes onto a cross-hole and locks securely without tools, then pulls off cleanly for fast servicing. Italian-made for accurate dimensions and consistent spring tension. Available in three sizes from 1mm × 11mm to 2mm × 23mm and pack quantities from singles to 10 units.
Why choose stainless steel split cotter rings?
Manufactured from stainless steel, these split cotter rings deliver excellent resistance to corrosion, rust and outdoor weathering — ideal for automotive, machinery, agricultural and DIY use. The sprung coil grips firmly under vibration and lifts off cleanly for repeated removal.
Sizes available
- 1mm × 11mm — small clevis pins and light-duty retention
- 1.25mm × 15mm — general-purpose pins and shafts
- 2mm × 23mm — heavier-duty machinery and equipment
Pack options
Order singly for one-off jobs, in packs of 2 or 4 for project sets, or packs of 10 for trade and bulk applications.
Typical uses
Clevis pin retention, shaft and axle locking, keyring attachments, gate latch and lever pins, machinery and automotive maintenance, garden and DIY equipment, agricultural implements, removable pin-locking on toolboxes and workshop fittings.
How to fit
Push the open coil over the cross-hole on the shaft or pin. The sprung ring will grip and lock automatically — no tools required. Remove by pulling the coil off the same way it went on.
Delivery
Free UK delivery on orders over £20. Same-day dispatch on orders placed before 2pm.