1 1/4 Hi-Collar Helical Spring Lock Washer is proportioned for counterbored socket screw joints where washer outside diameter and section height both matter. The taller section and smaller outside diameter distinguish it from a standard split washer while maintaining spring action under the cap screw head. Order it with the matching socket head cap screws so the screw and washer sizes stay aligned.
It is useful in OEM small-machine assembly, production fixtures, tooling plates, and equipment panels, with the helical ring compressing as the cap screw seats. For a locking approach built into the screw itself, compare 1960 Series Alloy SHCS with Nylon Insert. Review 18-8 Stainless Socket Head Cap Screws when the screw material requirement changes.
For hard-to-find socket screw accessories, Cold Headers can help line up the washer size with the matching cap screw requirement. The nominal size matches the screw size; do not size this washer from a broad outside-diameter assumption.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
