100 Pack M3 X 40mm Socket Head Cap Screws Kit In 304 Stainless Steel With Full Thread And Bright Finish, Allen Key Drive, Hex Socket Machine Screws For DIY Projects, Robotics, RC, And Heavy Duty Hardware

Ideal 100-pack M3x40mm hex screws kit in 304 stainless
✔️ 100 pieces M3x40mm full-thread hex socket screws, 304SS

This 100-piece M3 x 40mm hex socket head cap screw and nut kit is built from 304 stainless steel, delivering solid corrosion resistance and dependable strength for long-lasting use in DIY, robotics, RC models, and heavy-duty hardware projects. The full-thread design provides consistent engagement and reliable gripping in tight assemblies.

✅ Thread diameter: 3.0 mm (0.118 in)
✅ Thread pitch: 0.50 mm (0.0197 in)
✅ Length: 40.0 mm (1.57 in)
✅ Head diameter: 5.5 mm (0.217 in)
✅ Head height: 3.0 mm (0.118 in)
✅ Drive type: Allen hex socket
✅ Material: 304 stainless steel
✅ Packaging: storage box with compartments for sorting

💡 What is an M3 hex socket screw used for in small assemblies? In general, these handy fasteners are great for secure, clean assemblies in robotics, RC hobbies, DIY electronics, and compact machinery. - Ideal for mounting brackets, motors, sensors, and panels in tight spaces - Full-thread design provides strong grip and stable fastening under vibration - Made from corrosion-resistant 304 stainless steel for longevity in indoor/outdoor settings