It's a privacy lock ALX-321
Specification
ㆍ Backset : 2-3/8"(60MM)
ㆍ Door Thickness : 1-3/8"(35MM)~1-3/4(45MM)
ㆍ Latch Front : 57*25.4MM
ㆍ Strike : 70×28.0mm (T STRIKE)
ㆍ Latchbolt : 7/16"(11.0mm), Zinc
Features
ㆍ KSB6411 Tubular Type 20 (2TA) Standard Certification
ㆍ Easy to replace and install existing door locks
ㆍ It has a sophisticated design and interior effect
ㆍDW ㆍDN ㆍAB
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