- Part Number: 3172MSF
- Product Category: Machine Screws
- Size: 5/16-18
- Length: 4 1/2"
- Head Style: Flat Head
- Drive Style: Slotted
- Head Diameter: 0.556 - 0.597
- Head Height: 0.165 - 0.191
- Full / Partial Thread: Full
- Material: Steel
- Finish: Zinc
- RoHS: On Request