Prime-Line 9184072 Socket Set Screws, 5/16 in-18 X 3/8 in, Black Oxide Coated Steel (10 Pack)

Prime‑Line socket set screws provide a secure, low‑profile fastening solution for applications where components must be held firmly in place without a protruding head. Designed with an internal hex (Allen) drive and a fully threaded, headless body, these screws are ideal for locking gears, pulleys, collars, knobs, and mechanical parts onto shafts or within threaded holes. Commonly used in appliances, tools, machinery, furniture hardware, and general repairs, Prime‑Line socket set screws allow for precise positioning and strong holding power in tight spaces. Intended for use with same‑size matching threaded holes and installed using standard hex keys, they offer easy adjustment and reliable performance. Manufactured from quality materials for durability and accurate threading, Prime‑Line socket set screws make it easy to achieve clean, secure, and professional‑grade assemblies.

• Size: 5/16 inch-18 X 3/8 inch
• Headless screw that sits flush or below the surface once installed
• Internal socket drive requires Allen wrench (hex key) to install
• Installs into an internally threaded hole to hold an object into place
• Often used in machinery to secure gears to shafts