0S1621 CATERPILLAR 0S-1621: 1/2-13 Hexagonal Head Bolt | Cat® 1/2-13x1 Inch Bolt

Bolt Length (mm): 25.4
Bolt Type: Hex Head
Coating: Zinc Phosphate + Oil offers corrosion protection up to the point of assembly (recommend painting for external applications). Salt spray resistance of 72 hours to red rust. Coating color - dark grey to black.
Grip Length (mm): 3.17
Material: Steel
Thread: Coarse
Material Description: SAE J429 Grade 8. Head Marking - 6 radial lines (150 ksi Ultimate Tensile Strength)
Head Height (mm): 9.525
Thread Size (mm): .500
Hole Thread Pitch: 13
Drive (mm): 19.05
Finish: Phosphate and Oil Coated
Grade: 8
Locking Feature: 0
Overall Length (mm): 25.4