- Monster Bolts - Official MonsterBolts Fastener Store
This listing is for #4-40 Set (Grub) Screws. These are new 18-8 Stainless Steel screws and use an internal Hex drive (ie. Hex / Allen Key).
Diameter : #4
Thread Size / Count :40 TPI - Coarse
Drive : 0.50: Hex/Allen Key
Type : Set (Grub) Screw
System of Measurement : Inch
Material : Stainless Steel 18-8 (A2)
Specifications : ASME B18.3 / ASTM F912