Unbrako - 3/8" Shoulder Diam x 4" Shoulder Length, 5/16-18 UNC, Hex Socket Shoulder Screw - 8 Alloy Steel, 0.543 to 0.562" Head Diam
Item #: 67870964
Brand: Unbrako
Model #: 118103
Exact Tooling IR#: 04
Features and Benefits
Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque.
Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.
| Product Specifications | |
|---|---|
| Type | Shoulder Screw |
| System of Measurement | Inch |
| Shoulder Diameter (Inch) | 3/8 |
| Shoulder Diameter (Decimal Inch) | 0.3710 to 0.3730 |
| Thread Size | 5/16-18 |
| Shoulder Length (Inch) | 4 |
| Drive Type | Hex Socket |
| Material Grade | 8 |
| Material | Alloy Steel |
| Head Height (Decimal Inch) | 0.240 to 0.250 |
| Thread Standard | UNC |
| Fastener Standard | ANSI B1803; BS 2470 |
| Hex Key Size (Inch) | 3/16 |
| Hex Key Size (Decimal Inch) | 0.1875 |
| Head Diameter (Decimal Inch) | 0.5430 to 0.5620 |
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