Master Lock 421 Steel Lockout Hasp, 1 1/2 in. Jaw Clearance

Master Lock
Steel, Polymer
2 3/8 in. W x 5 in. H
Product Type:
Steel Lockout Hasp
0.20 LBS
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The Master Lock No. 421 Steel Safety Lockout Hasp features a 1-1/2"(38 mm) while repairs or adjustments are made. Control cannot be turned on until last workerÂ’s padlock is removed from hasp.

Note: If next day air is requested, the order will be a priority, but lead times will be close to what the standard is. See PDF for Lock Express Program to have lock out devices shipped in 48 Hours if ordered by 2 pm CST.


  • Steel Lockout Hasp
  • Lockout by multiple workers at each lockout point
  • Keeps equipment inoperative while repairs or adjustments are being made
  • Control cannot be turned on until last worker's safety padlock is removed from hasp
  • Heavy gauge steel jaw with red vinyl coated handle
  • Dimensions are 2-3/8"x 5" (60 mm x 127 mm) with 1-1/2"(38 mm) inside jaw diameter, holds up to 6 safety padlocks


  • Not keyed
  • 5 in. hasp length
  • Accepts shackle diameter up to 9/32 in.


Lock Express Program (PDF Download)