For Grainger part number 5JY95; one way tamper proof screw, there are a couple of options. Grainger part number 42W497 will have two driver bits for this type of head, one being for a number 12 screw and the other for the number 14 (1/4”). Part number 42W495 will be a complete kit, with drive tool and bits, ranging from number 6 to 14. If further assistance is needed, please consider calling Grainger. The phone number to Grainger is 1-800-323-0620.
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