PennEngineering® Screw Head, Spring-loaded - Unified PFS2-632-84-BN

PFS2 series spring-loaded captive panel screws feature a screw head designed for tool or hand operation, remaining captive for easy mounting and removal. The part is constructed with a carbon steel screw, hardened carbon steel retainer, 300 series stainless steel spring, and a nylon retaining ring rated to 200°F (93°C). It is configured for #6-32 thread size with a 0.500 in screw length and is available with a black nitride finish (BN) per AMS2753, Section 3. The assembly is rated for use in sheet materials with hardness up to HRB 80 or HB 150. Minimum hole size is 0.060 in, with a maximum sheet thickness of 0.275 in and a minimum distance from hole center to sheet edge of 0.28 in. Diagonal knurling indicates metric thread sizes, though this variant uses unified threading.