Beefy 8mm Shoulder Screw 30mm Long With M6 X 1mm Thread, Knurled Head, Hex Socket Drive, Plain Finish, 12.9 Alloy Steel, ISO 7379 Compliant, Rockwell C39-C44, Pack Of 5

Pack of 5 sturdy 8mm shoulder screws, 30mm long
✔️ 8mm shoulder dia, 30mm length, M6x1 thread, knurled head, hex socket

These shoulder screws are heavy-duty fasteners designed for precise alignment, spacing, and load bearing in machinery, fixtures, and assemblies where a fixed shoulder and knurled head help secure positioning.

✅ Shoulder screw features 8mm shoulder diameter and 30mm shoulder length for precise spacing
✅ M6x1 thread and 4mm drive size with hex socket drive for solid seating
✅ Knurled head, plain finish, and 12.9 alloy steel for durability
✅ ISO 7379 compliant, Rockwell C39-C44 hardness for strength
✅ Head dia 13mm, head height 5.5mm, shoulder dia tolerance -0.013 to -0.049mm, length tolerance +0.25mm
✅ Pack of 5 units included for ready-to-use inventory

💡 What is a shoulder screw used for in precision machinery?

Shoulder screws act as precise alignment stops and spacing components in housings, jigs, and fixtures. - Handy for repeatable axial alignment and consistent shoulder engagement - Works with metric threads like M6x1mm and knurled head variants - Supports strong load bearing with 12.9 alloy steel and a plain finish - ISO 7379 compliant and Rockwell hardness C39-C44 for reliability✝️