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PTP - Capabilities

Ring Lock Studs

PTP produces Ring Lock Studs in 303 Stainless, A286, 4140 Alloy Steel, Alloy 718 (INCONEL 718), 6A1-4V titanium and Waspaloy to MS, AN, AS, NAS and other specifications. All ring lock studs are available in a wide range of sizes and styles. PTP can manufacture to customer-specific designs, requirements and plated finishes.

Ring and Key Lock Studs

PTP MS part-numbers cross reference to Shur-Lok® and Arconic® part numbers. Here are our most common part numbers, and links to AS and MS specifications.

Download our Shur-Lok® and Arconic® part interchange brochure.

Ring Lock Studs are used in structural assemblies, such as forgings, turbine engines, castings and machined components where a nut is the preferred retention component by design. Studs act as a renewable hardened fastener platform to prevent thread wear and as permanent locators for component assemblies.

Studs are manufactured in many sizes and thread configurations, allowing oversize stud ends to be used for component repair while still allowing the use of intended nut sizes. This eliminates the need for additional fasteners or assembly tools.

Processed to strict government requirements, PTP Ring Lock Studs withstand multiple assembly / disassembly cycles without appreciable wear, and are available with standard or Lok-thread designs to enhance fastener retention and security.

PTP Ring Locked Studs have a serrated collar and are installed in specially prepared, tapped holes in the parent material. Once installed to the proper depth, a serrated lock ring is driven over the serrated stud collar to complete the installation and prevent the stud from rotating or backing out.

Ring and Key Lock Studs are produced in a wide variety of materials to MS, AN, NAS and other specifications. All studs are available in a wide range of sizes and styles in standard configurations or with standard or Lok-thread features. Additionally, PTP can manufacture to customer-specific designs, requirements and finishes, with cadmium being the most common.

If you have a requirement for highly reliable Ring Lock Studs, talk with our knowledgeable sales, engineering and quality team members about how we can help!

PTP will soon be certified to manufacture HS4773-equivalent parts for Boeing. Details soon!