3/8-16 x 4 1/2 Cup Point Square Head Set Screw supports traditional wrench-driven set screw service in heavy mechanical assemblies. The open square head is useful when a standard wrench is preferred and the drive must stay visible during adjustment.

Common applications include crushers and aggregate equipment, where exposed wrench flats remain easy to reach during service. For compact headless retention with key access, compare cup point socket set screws in alloy steel or 18-8 stainless steel.

Use Cold Headers when the requirement is specific: square head, cup point, carbon steel, Class 2A thread, and the length shown on the drawing. The thread, length, across-flats size, head height, and cup point diameter should be checked against the print before purchase.

Technical Highlights

• Head: Square, wrench-driven; flats match nominal size
• Point: Cup Point
• Thread Size: 3/8-16 (Class 2A)
• Length: 4 1/2 in.
• Width Across Flats: 0.375 max / 0.362 min in.
• Width Across Corners: 0.530 max / 0.497 min in.
• Head Height: 0.293 max / 0.270 min in.
• Cup Point Diameter: 0.212 max / 0.194 min in.
• Material: Carbon Steel, case hardened per ASME B18.6.2 (case hardness 83 HR15 minimum, case depth 0.006 in. minimum)
• Finish: Plain
• Dimensional Standard: ASME B18.6.2

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