The 4-40 Black Oxide Phillips Flat Head Screw is a fastener for high-quality craftsmanship in knife making and gun holster assembly. It is stainless steel with a black oxide coating, built for durability, strength and a professional finish. It is made to work seamlessly with #4 finishing washers, which makes it ideal for securely mounting knife handles, gun grips and other tactical parts.
Use it to replace or complement #6 Chicago Screws for a tight, reliable fit that adds function and style to custom builds. From a custom knife to a gun holster, this versatile screw delivers precision and performance.
Specifications
- 4-40 screw size (fits #4 threaded applications)
- Length 0.365 inches, measured from the head surface
- Head diameter 0.205 inches
- Phillips drive
- Black oxide coating
- Stainless steel
- Sold as a 1-pack (one screw per quantity)
KK Swatch Size
large
Product Type:
Precision Screws
Thread Size:
4-40
Head Style:
Select from Options Above
Drive Type:
Select from Options Above (Torx T-8, Torx T-10, or Phillips)
Material:
Stainless Steel - DFARS Compliant
Head Diameter:
Select from Options Above
Thread Length:
Select from Options Above
Finish:
Select from Options Above (Natural Stainless or Black Oxide)
Quantity in Pack:
Select from Options Above (25 screws per package or sold individually)
Origin:
Made in the USA
