#10 Hi-Collar Helical Spring Lock Washer supports socket head cap screw installations that need spring take-up inside the counterbore. The split helical ring compresses as the screw seats, keeping spring take-up under the head and helping resist loosening under vibration. A #10 hi-collar washer pairs with a #10 socket head cap screw by nominal size.

It is useful in panel and guard mounting, bracket retention, access covers, and machine enclosures, with the helical ring compressing as the cap screw seats. Plain carbon steel should be kept dry and oiled; ask about stainless washers as a non-catalog item when exposure matters. Compare Alloy Steel Socket Head Cap Screws when building a complete inch socket-screw order.

Use Cold Headers when a drawing calls for the washer that fits inside a socket head cap screw counterbore. Match the washer by nominal screw size, then verify the assembly has the counterbore geometry intended for this style.

Technical Highlights

• Nominal Size: #10 (matches screw size)
• Style: Hi-Collar (reduced OD, increased section vs. standard split washer)
• Type: Helical Spring Lock Washer
• Fits: Socket head cap screw counterbores
• Material: Carbon Steel
• Dimensional Standard: ASME B18.21.1

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.