7/16 Hi-Collar Helical Spring Lock Washer gives a socket screw assembly a reduced-OD lock washer made for the space under a socket head cap screw. 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.

For plant maintenance work, replacement cap screws, counterbored plates, and guard hardware, the reduced outside diameter helps the washer sit where a broader split washer cannot. 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.

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: 7/16 (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.

Unit of Measure

Specifications

Brands

N/A Cold Headers, Inc.

Nominal Size

N/A 7/16 in

Material

N/A Carbon Steel

Package Type

N/A Bulk

Quantity

N/A 100

Search

N/A HSLW.7/16