M3 X 30mm Hex Socket Head Cap Screws Set, 200 Pieces, 12.9 Grade Alloy Steel, Black Zinc Plated, Allen Drive, Half-Thread Machine Screws, Salt Spray Tested, Oil-Free Electroplated Finish for No-Fuss Install

M3 x 30mm Hex Socket Cap Screws, 200-Pc Set
✔️ 200 pcs, 12.9 grade alloy steel, black zinc, salt spray tested

These high-strength M3 x 30mm hex socket cap screws come in a 200-piece set. Made from 12.9 grade alloy steel with a black zinc electroplated, oil-free finish, they resist staining and ease installation in machinery, outdoor equipment, and coastal environments where corrosion resistance matters.

✅ 200-piece pack
✅ M3 x 30mm size, half-thread design
✅ 12.9 grade high-strength alloy steel
✅ Black zinc electroplate, oil-free finish for clean install
✅ Salt spray tested over 200 hours per ISO 9227:2022

💡 What is a hex socket head cap screw used for?

This handy fastener is widely used in equipment assemblies where a clean, secure fit matters. - Handy for securing parts in tight spaces - High-strength M3 x 30mm screws for reliable joints in machinery - Works with compatible nuts and threaded holes for durable connections