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The HILLMAN FASTENERS RU4 is a key blank designed to match the Russwin keyway profile, sold in a bag of 10 blanks. Key blanks in this family are used by locksmiths, facilities maintenance technicians, and security professionals to cut duplicate or replacement keys for compatible Russwin lock cylinders. The RU4 corresponds to Ilco blank 1011P, giving shops a cross-reference point when sourcing from multiple suppliers. Each blank is an uncut, raw key that must be cut to a specific bitting on a code-cutting or duplicating machine before use.
This blank is suited for commercial and institutional locksmithing work where Russwin cylinders are commonly found, including office buildings, schools, hospitals, and other facilities using Russwin hardware. The 10-blank-per-bag format is practical for small restocking orders or single-job requirements. For higher-volume operations, blanks are available in master cartons of 50 bags. The minimum order quantity is 10 blanks, aligning with the standard single-bag unit.
Designed for use with Russwin lock cylinders requiring the RU4 keyway profile. Cross-references to Ilco 1011P key blank.
Key blanks require cutting on a compatible key duplicating or code-cutting machine before they function as working keys. This work is typically performed by a licensed locksmith or qualified facilities technician. Always verify the keyway profile against the target lock cylinder before cutting. Do not attempt to force an uncut or improperly cut blank into a live cylinder.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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