Bulk #4-40 Phillips Flat Undercut Thread Cutting Screw Type 23 – Full Thread 18-8 Stainless Sheet metal screws 5 mm (45° trilobular thread-forming)

5 mm (45° trilobular thread-forming) Available Lengths Fully threaded — select length above Head / Drive Pan Head / PZ1 Pozidriv (Type Z) Thread Form 45° trilobular thread-rolling / thread-forming Material A2 / 18-8 Stainless Steel Finish Passivated & Wax-Lubricated (RoHS) System of Measurement Metric Standards / Reference 45° trilobular reference profile (non-OEM) More Monster Bolts

NE (Thin Height) Locknuts: Sizes: 1/4"-20 to 1"-14

Bright zinc plating provides durable corrosion protection while meeting RoHS requirements—ideal for HVAC installs

Fine-thread 5/16-24 hex nuts available under the USA Fasteners collection

Fast shipping from the USA—Monster Bolts has you covered

Bulk #4-40 Phillips Flat Undercut Thread Cutting Screw Type 23 – Full Thread 18-8 Stainless Sheet metal screws 5 mm (45° trilobular thread-forming)Monster Overview: Perfect low profile, rust proof assemblies with #4 40 Phillips Flat Undercut Head Thread Cutting Screws, Type 23, 18 8 Stainless from Monster Bolts. The undercut 82 head keeps more threads engaged in thin sheet, while the Type 23 triangular chip relief pocket ejects swarf as it cutslowering drive torque and leaving clean internal threads in stainless panels, aluminum, and plastics. Precision machined from 18 8 (A2) stainless, these