1/4-20 x 5/8 18-8 Stainless Steel Button Head Socket Cap Screw with Nylon Insert supports stainless fastening in washdown-adjacent machinery without changing button-head geometry. The locking pellet adds a prevailing-torque feature while the internal hex drive keeps installation compact from the top side.
Button head geometry is useful around access covers, machine guards, and operator-contact surfaces where a smooth exposed profile is preferred. For display and fixture hardware, decorative covers, or light-duty brackets, confirm the mating thread, drive access, and whether surface contact from the button head suits the assembly.
Slight magnetism from cold working can be normal for 18-8 stainless, so final selection should reflect the mating parts and environmental exposure. For higher preload potential with a deeper socket, compare 18-8 Socket Head Cap Screws with Nylon Insert. Cold Headers installs the locking pellet in-house for supported socket-cap sizes, with odd-size requests handled through quoting.
Technical Highlights
- Material: 18-8 Stainless Steel
- Thread Size: 1/4-20
- Length: 5/8 in.
- Head Style: Button Head
- Drive Type: Internal Hex
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 7/64 in.
- Nylon Insert Location (N): 3/16 in. +/-1/2 pitch
- Head Dimensions: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
