1/2-13 x 1/4 Brass Flat Head Socket Cap Screw is a brass flat head socket cap screw for assemblies that use a prepared countersink to reduce surface projection.

The 82-degree flat head is intended for a properly prepared countersunk hole; final seating depends on the mating countersink and the surrounding assembly geometry. Typical uses include electrical enclosures, control panels, and communication equipment, where reduced projection, socket-drive access, and a clean exposed surface can matter.

Brass selection should reflect the mechanical, electrical, environmental, and dimensional requirements of the assembly rather than substitution for steel or stainless hardware. For this 1/2-13 thread and 1/4 in. length, review the body diameter, head diameter, head height, hex socket size, and key engagement before approving the fastener for a countersunk assembly. Cold Headers has supplied specialty industrial socket fasteners since 1962 and supports buyers looking for exact brass socket screw sizes.

Technical Highlights

• Material: Brass
• Thread Size: 1/2-13
• Length: 1/4 in.
• Nominal Body Diameter: 0.500 in.
• Head Diameter: 0.872-0.938 in.
• Head Height: 0.251 in.
• Hex Socket Size: 5/16 in.
• Drive Type: Internal Hex
• Minimum Key Engagement: 0.172 in.

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