Product Category: Products Self-Clinching Fasteners Fasteners Inch & Metric Captive Screws Panel Screws & Hardware Screws Manufacturer: Penn Engineering Manufacturer Part Number: Penn Engineering PF7MF-440-1 Thread Size: 4-40 SKU: PEMPF7MF-440-1 Finish Retainer: Natural finish Finish Screw: Bright nickel over copper flash Finish Spring: Natural Finish Material Retainer: Aluminum Material Screw: Heat-Treated Carbon Steel Material Spring: 300 Series Stainless Steel Min. Sheet Thickness: .031 in Screw Length Code: 1 Thread Code: 440 Type: PF7MF A (Shank) Max.: .041 in C Max.: .186 in E ± .010: .310 in G1 ± .025: .100 in G2 ± .025: .270 in H ± .010: .100 in Hole Size in Sheet + 0.005 - 0.000: .187 in T1 Nom.: .38 in T2 Nom.: .55 in