Master Lock 427 Snap-On Lockout Hasp combines multiple-person lockout and tagout identification with an easy to apply "Snap On" advantage with its spring loaded locking arm. Master Lock 427 lockout hasp has both anodized aluminum and stainless steel construction for combined corrosion resistance and strength. Up to 5 workers can apply their personal safety locks. 2-7/8" wide... 7" height