#8 Hi-Collar Helical Spring Lock Washer is proportioned for counterbored socket screw joints where washer outside diameter and section height both matter. The washer is not a substitute for joint design review, but it is the washer style commonly paired with recessed socket head cap screws. Use it alongside 1960 Series Socket Head Cap Screws when the drawing calls for a hi-collar washer.

Use this style for maintenance kits, screw-and-washer kitting, replacement hardware, and shop service bins when a standard split lock washer has too much outside diameter for the counterbore.

Cold Headers supports OEM, repair, and toolroom sourcing where washer style and nominal size both need to match the print. Confirm the nominal screw size, counterbore clearance, material, package quantity, and whether a hi-collar washer is specified.

Technical Highlights

• Nominal Size: #8 (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.