TO 00591-04413-81

Frequently Asked Questions

Q: What are the exact dimensions of roll pin TO 00591-04413-81?
A: This roll pin has a nominal diameter of 3/16 inch (0.1875 inch) and an overall length of 1-3/8 inches (1.375 inches). The pin is precision-formed for press-fit installation in compatible holes sized 0.187 to 0.192 inch diameter.

Q: What material is this roll pin made from and why?
A: This pin is manufactured from 302 stainless steel with a passivated surface finish. Stainless steel provides superior corrosion resistance and durability in electric lift truck environments where exposure to moisture, cleaning solutions, and vibration is common.

Q: What does passivated finish mean?
A: Passivation is a chemical treatment that removes iron particles from the stainless steel surface and creates a protective oxide layer. This treatment enhances corrosion resistance and extends the working life of the pin in wet or corrosive environments.

Q: What standard does this part conform to?
A: This roll pin conforms to ASTM A313 standards for stainless steel spring pins. ASTM A313 ensures the pin meets specified tensile strength, material composition, and dimensional tolerances required for reliable mechanical retention.

Q: Which Toyota electric lift trucks use this part?
A: This OEM stainless steel roll pin is compatible with select Toyota electric lift truck models. Verify that your equipment hole dimensions match 0.187 to 0.192 inch before ordering to confirm correct fitment.

Q: Why is this pin made from stainless steel instead of carbon steel?
A: Stainless steel provides extended durability compared to carbon steel, particularly in cold storage facilities or wet environments where electric lift trucks operate. The passivated 302 stainless resists rust and maintains spring tension longer than hardened carbon steel alternatives.