Stainless Steel door bolt lock /Security door bolt lock.
Amazon.com: Quluxe 4 Inch White Slide Latch, Aluminum Alloy Thick Safety Rustproof Sliding Lock, Mini Door Barrel Bolts Latches (Pack of 2) : Everything Else
RELIABILT 4-in Zinc Steel Barrel Bolts in the Door Bolts department at Lowes.com
1PCS Stainless Steel Security Door Chain Lock Anti-theft Slide Bolts for Hotel Living room Bedroom Door Latch Furniture Hardware - AliExpress