ISO 7379 Shoulder Screw Specifications
ISO 7379 Shoulder Screws
Stripper Bolts | Precision Shoulder Bolts | Hex Socket Drive
ISO 7379 shoulder screws feature a precision-ground unthreaded shoulder between the head and threads. They serve as bearing surfaces, pivot points, and locating pins in machinery, jigs, and fixtures requiring precise dimensional control.
Quick Specifications
Key Features
Precision Ground Shoulder
Shoulder diameter held to h8 tolerance for precise fit in bushings and bearings. Surface finish Ra 0.8 ΞΌm or better.
Pivot & Bearing Surface
Functions as a shaft or axle for rotating components. Smooth shoulder allows free rotation of mating parts.
Consistent Clamping Length
Shoulder length controls clamping force independently of torque. Ensures consistent assembly every time.
Class 12.9 Strength
Heat-treated alloy steel provides 176,900 PSI tensile strength for demanding applications.
Dimension Chart
| Shoulder Γ | Thread Size | Head Dia. | Head Height | Hex Key Size |
|---|---|---|---|---|
| 4 mm | M3 | 6 mm | 4 mm | 2.5 mm |
| 5 mm | M4 | 8 mm | 5 mm | 3 mm |
| 6 mm | M5 | 10 mm | 6 mm | 4 mm |
| 8 mm | M6 | 13 mm | 8 mm | 5 mm |
| 10 mm | M8 | 16 mm | 10 mm | 6 mm |
| 12 mm | M10 | 18 mm | 12 mm | 8 mm |
| 16 mm | M12 | 24 mm | 16 mm | 10 mm |
Common Applications
Shop ISO 7379 Shoulder Screws
Precision ground shoulders. Class 12.9 strength. Multiple shoulder lengths available.
Shop Shoulder Screws