Bulk #4-24 Flat Head Phillips Self-Tapping Screws (Type AB) – Zinc CR+3 – Monster Bolts (Metric Lock Wash) 25 - Coarse (Standard) Thread

25 - Coarse (Standard) Thread Drive 13mm Hex Drive Flange Design Built-in washer

Perfect for use in machinery

these washers are dimensionally equivalent to the N400 specifications

these USA-made fasteners provide unmatched performance for large-scale assemblies in industries where reliability is paramount

9/16" external hex Washer Feature Integral serrated under-head flange Point Style Taptite Alternative tri-lobular thread-rolling Material Case-hardened steel Finish CR+3 zinc plating

Bulk #4-24 Flat Head Phillips Self-Tapping Screws (Type AB) – Zinc CR+3 – Monster Bolts (Metric Lock Wash) 25 - Coarse (Standard) ThreadMonster Overview: Fix your project right the first time with Bulk #4 Type AB Flat Head Phillips Self Tapping Screws from Monster Bolts. These self tapping screws feature a Type AB tapping thread, allowing them to form secure threads in metal or wood while delivering reliable installation performance in lighter duty applications. The flat head design allows the screw to sit flush with the material surface, making these fasteners ideal for applications