Bulk #4-40 Flat Head Socket Cap Screws – Alloy Steel – Zinc Bake CR+3 Length:5000 Qty - #4-40 x 5/8" These washers are Made in

These washers are Made in the USA and engineered to provide a spring-like locking action that helps resist loosening caused by vibration

Full Thread: Fully threaded shank grips plastic of any thickness

serviceable internal thread

Zinc Yellow CR+6 Bake (Coarse Thread)

Pan Head: Large bearing surface distributes load—ideal for slots

Bulk #4-40 Flat Head Socket Cap Screws – Alloy Steel – Zinc Bake CR+3 Length:5000 Qty - #4-40 x 5/8" These washers are Made inMonster Overview Fix your project right the first time with Bulk #4 40 Flat Head Socket Cap Screws. These precision fasteners are manufactured from alloy steel, delivering dependable strength for electronics, panels, and light mechanical assemblies. The flat head (countersunk) design allows the screw to sit flush with the material surface, creating a clean and smooth finished appearance. These screws feature a hex socket drive, also known as an Allen