Gibraltar HEP3600-G Straight Ejector Pin 5/16 in Steel

Product Description

The GIBRALTAR HEP3600-G is a straight ejector pin used in injection mold tooling to push finished parts out of the mold cavity at the end of each cycle. Machined from steel with a nitride finish for surface hardness and wear resistance, this pin measures 5/16 inches in diameter with an overall length of 14 inches. The head diameter is 1/2 inch and the head height is 1/4 inch, providing a positive seating surface against the ejector plate. The pin length — the working shaft below the head — is 13.75 inches. Toolmakers and moldmakers install and replace ejector pins during mold maintenance or when pins show signs of wear, galling, or breakage.

Straight ejector pins are a standard consumable component in plastic injection molding, die casting, and related manufacturing tooling. This pin is suited for use in ejector pin retainer plates where the pin diameter and head dimensions align with the mold design. It is appropriate for residential tooling shops, production mold facilities, and maintenance applications where a standard straight pin profile is specified. The nitride surface treatment improves lubricity and extends service intervals in high-cycle molds.

Key Features

• Nitride finish provides surface hardness and improved wear resistance
• 5/16 inch pin diameter for standard mold plate bores
• 14 inch overall length accommodates deeper mold bases
• 1/2 inch head diameter seats securely in ejector retainer plates
• Steel construction for durability under repeated ejection loads
• Sold individually — minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement straight ejector pin for injection mold and die tooling applications requiring a 5/16 inch diameter pin with a 14 inch overall length and standard head dimensions.

Installation Notes

Ejector pins are installed and replaced by toolmakers or skilled maintenance machinists during mold disassembly. The mold must be fully cooled, de-pressurized, and removed from the press before ejector plate disassembly. Verify that the pin bore diameter, head pocket dimensions, and pin length match the mold specification before installation. Avoid forcing oversized pins into bores, as this can damage the mold plate or cause the pin to seize during operation.