450Pcs M3 M4 M5 M6 M8 Allen Head Socket Set Screws Kit Pro Grade Heavy Duty Internal Hex Grub Screws 12 9 Class Black Oxide Alloy Steel Rust Resistant Assortment For Machinery Automotive DIY Projects

Premium 450pc M3-M8 Hex Grub Screw Set, 12.9 Alloy Steel
✔️ 450Pcs in 15 sizes: M3x3-M8x16, 12.9 alloy steel, black oxide

Glarks 450Pcs M3-M8 Allen head socket grub screws are heavy-duty fasteners designed for locking components in tight spaces. Made from 12.9 class alloy steel with a black oxide finish, they resist rust and corrosion in machinery, automotive, and DIY projects.

✅ 12.9 class alloy steel with black oxide finish for strength and rust resistance
✅ Includes 15 sizes from M3x3 to M8x16 totaling 450 pieces
✅ Hex socket drive for easy Allen-key installation in tight spots
✅ Flush/set-head design ideal where the screw sits below the surface
✅ Packed in a durable plastic box for organized storage

💡 What is an internal hex grub screw set typically used for in machinery and DIY projects? A handy fastener for securing components in tight spaces and keeping surfaces flush.

- handy for locking parts in confined areas where head remains below surface - works with standard Allen keys for quick, tool-friendly installation - made from 12.9 class alloy steel with black oxide for long-lasting strength and corrosion resistance - ideal for machinery, automotive assemblies, appliances, and hobby projects