Shop Essentials 100 Piece M4 X 12mm Hex Socket Button Head Cap Screw Kit Featuring Sleek Black Oxide Coating And Dead Nuts 10.9 Grade Alloy Steel Fasteners For Hardcore Weekend Projects That You Gotta Own Now

100 Piece M4 Hex Socket Button Head Screw Set with Allen Key
✔️ M4X12MM 10.9 Grade Alloy Steel Screws with Black Oxide Finish

This 100 piece fastener kit comes loaded with M4 button head cap screws designed for tight machine builds, automotive trim work, and DIY mechanical assemblies. Each screw ships with a matching internal drive tool and sits neatly in a snap shut plastic tote for quick shelf access.

✅ Thread diameter measures 4 mm with a 0.7 mm pitch for solid grip
✅ Overall length hits 14.08 mm while the rounded head sits low on the surface
✅ Grade 10.9 alloy steel construction delivers 1040 N/mm² tensile strength
✅ Chrome vanadium hex key included with nickel plating to fight corruption

💡 What kind of preload and shear capacity can you expect from m4 internal hex cap screws rated at class ten point nine?
An internal hex drive design combined with grade 10.9 hardening gives these fasteners serious holding power for demanding rigs. Here is what makes them handy on the bench:
- High tension limits let you clamp parts tight without thread stretch during heat cycles
- Low profile button heads slide flush under covers and keep fingers clear of moving gears
- Zinc free black oxide shields the shank from shop oils and salt air exposure

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