Prime-Line 9178372 Socket Head Cap Screws, Hex (Allen) Drive, 1/4 in-28 X 1 in, Black Oxide Coated Steel (10 Pack)

Prime‑Line socket head cap screws provide high‑strength, precision fastening for applications that require a secure hold in tight or limited‑clearance spaces. Designed with a cylindrical head and internal hex (Allen) drive, these screws allow for greater torque application while maintaining a clean, low‑profile appearance. Ideal for metal‑to‑metal assemblies in machinery, appliances, automotive repairs, tools, fixtures, and specialized hardware projects, Prime‑Line socket head cap screws are intended for use with same‑size matching nuts and washers or threaded holes to ensure proper fit and dependable performance. Manufactured from quality materials for durability and consistent thread accuracy, they install easily using standard hex keys or Allen wrenches. Trusted by DIY homeowners and professionals across the U.S., Prime‑Line socket head cap screws make it easy to achieve strong, compact, and professional‑grade fastening.

• Size: 1/4 inch-28 X 1 inch
• Hex (Allen) Drive
• Installs using an Allen wrench
• Can be used in tight spaces where there may not be room for a socket tool or wrench
• Often used in machinery, tools and dies
• Thread Type: Fine, Thread Class: UNF-3A, Point Style: Blunt
• Specification(s) Met: ASME B18.3 and ASTM A574