10/50pcs M1.6 M2 M2.5 M3 M4 M5 M6 M8 Black Grade 10.9 Steel ISO7380 Hexagon Hex Socket Button (Mushroom) Allen Bolt Screw

High-strength ISO7380 hex socket button (mushroom) head bolts — available in packs of 10 or 50. Ideal for precision assemblies, electronics, automotive trim, hobby projects and industrial fastening where a low-profile, clean finish and superior tensile strength are required.

• Compact, scannable description focused on key search terms: Hex Socket Button Head Bolt, Mushroom Allen Screw, ISO7380, Grade 10.9

Key features

• Material & Grade: High-strength Grade 10.9 steel for superior load capacity and durability
• Standard: Manufactured to ISO 7380 specifications for consistent fit and performance
• Head type: Low-profile button (mushroom) head for a sleek, finished appearance
• Drive: Hexagon socket (Allen drive) for secure, torqueable installation
• Finish: Matte black finish for a professional look and added surface protection
• Pack options: Choose 10 pcs or 50 pcs per pack

Sizes included

• Diameters available: M1.6, M2, M2.5, M3, M4, M5, M6, M8
• Thread pitch varies by size (standard metric pitches) — pick the size that matches your tapping/threaded inserts

Why choose these bolts

• High tensile strength for demanding mechanical and structural applications
• Precise ISO production tolerances for repeatable assembly and interchangeability
• Low-profile button head reduces snagging and gives a clean aesthetic finish
• Allen drive allows high torque with minimal cam-out — great for tight spaces and professional results
• Small sizes (M1.6–M3) perfect for electronics, PCB mounts, and precision instruments; larger sizes (M4–M8) serve machinery, enclosures, and fixtures

Typical applications

• Electronics and PCB mounting
• 3D printers, RC models and hobby builds
• Automotive panels, trim and brackets
• Industrial machinery and equipment assemblies
• Furniture, fixtures and architectural fittings
• Any project requiring durable, low-profile fasteners with a clean black finish

Installation & care tips

• Use properly sized hex keys/Allen drivers to avoid rounding the socket
• Apply threadlocker for vibration-prone assemblies when required
• Inspect threads and heads before installation; tighten to recommended torque for Grade 10.9 hardware
• Store in a dry place to preserve finish

What’s in the box

• Your choice of 10 or 50 pieces per pack, assorted or single-size packs based on selection (M1.6 → M8)

Ready to upgrade your fasteners? Add the right size to your cart and get reliable, high-strength ISO7380 button head bolts for professional, long-lasting assemblies.