For drawings calling out a locking button head socket screw, the 1/4-28 x 3/4 Alloy Steel Button Head Socket Cap Screw with Nylon Insert keeps exact thread and length identification clear. The insert provides a prevailing-torque feature while preserving the compact top-side tool access expected from an internal hex button head screw.

Button head geometry is useful when clearance, appearance, and lower head height matter more than using a standard socket head cap screw profile. The 1/4-28 x 3/4 size is often reviewed for maintenance repairs, replacement assemblies, and retrofit work when a bill of materials specifies an alloy steel locking button head socket screw. Selection should account for joint geometry, thread engagement, installation access, head clearance, and the desired level of prevailing torque.

Since 1962, Cold Headers has helped industrial buyers locate specialty socket screws, replacement sizes, and unusual catalog configurations. For adjacent selections, buyers often compare 18-8 Stainless Button Head Socket Cap Screws, 316 Stainless Button Head Socket Cap Screws, and related locking fasteners when checking head style, material, locking feature, thread size, or nearby lengths.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 1/4-28
• Length: 3/4 in.
• Head Style: Button Head
• Drive Type: Internal Hex Socket
• Locking Feature: Nylon insert providing prevailing torque

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