4-40 x 1 1/2 Brass Flat Head Socket Cap Screw gives engineers a brass internal-hex fastener for countersunk holes where a smooth exposed face is part of the design.
Applications can include instrumentation, laboratory fixtures, and display hardware. Brass selection should reflect the mechanical, electrical, environmental, and dimensional requirements of the assembly rather than substitution for steel or stainless hardware.
The internal hex drive supports installation from above the workpiece, which is useful in compact layouts where side wrench clearance is limited. Cold Headers helps industrial distributors, sourcing teams, and maintenance operations identify uncommon lengths and specialty socket products. For this 4-40 thread and 1 1/2 in. length, review the body diameter, head diameter, head height, hex socket size, and key engagement before approving the fastener for a countersunk assembly.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
