O Ring Stainless Steel Welded Marine Grade Polished Finish 4mm x 25mm (pack of 10)

A4 316 MARINE GRADE STAINLESS STEEL – CORROSION RESISTANT IN SALTWATER & OUTDOOR USE Manufactured from A4 316 stainless steel — the premium marine-grade alloy containing molybdenum for superior resistance to saltwater corrosion, rust, and pitting compared to standard 304 grade. Suitable for permanent marine, coastal, and outdoor applications including boat rigging, sailing gear, equestrian tack, and outdoor bag hardware where lesser materials would corrode within months. FULLY WELDED CONSTRUCTION – NO WEAK JOINT TO FAIL UNDER LOAD Each O ring is precision welded closed at the junction point and finish-polished smooth, eliminating the weak split or butt joint found on cheaper unwelded alternatives. The welded construction means the ring will not spring open, deform, or fail under sudden load — critical for safety-relevant applications including dog leads and collars, equestrian tack, lifting straps, sailing rigs, and any load-bearing strap connection. 4 x 25mm – PACK OF 10 STAINLESS STEEL O RINGS Each pack contains 10 individual O rings with 4mm wire thickness and 25mm internal diameter. Suitable for dog harnesses, rucksack hardware, equestrian tack, light marine rigging, outdoor webbing, lanyards, and DIY craft. The 25mm internal diameter accommodates standard 20–25mm webbing, leather strapping, and paracord. Free-running shape ideal where the strap needs to move smoothly around the ring. POLISHED MIRROR FINISH – CLEAN PROFESSIONAL APPEARANCE Highly polished mirror finish for a clean, professional look that resists staining and wipes clean easily. The smooth polished surface glides freely against fabric, leather, webbing, and nylon — preventing wear or fraying on the strap material it carries. Maintains its bright finish indefinitely with no plating to wear off, even after years of outdoor or marine use. VERSATILE – BAG MAKING, DOG COLLARS, EQUESTRIAN, MARINE & CRAFT Genuinely multi-purpose: a single pack covers bag and rucksack hardware, dog collar and lead attachment, harness fittings, leathercraft and saddlery, webbing strap connectors, equestrian bridles and tack, boat rigging and sailing hardware, lanyards, paracord projects, and decorative metalwork. Available across our full size range — browse our store for other wire thicknesses and internal diameters.