Master Lock S3900 Lockout Device features Stainless Steel construction for corrosion resistance and fits virtually all male pneumatic fittings. • Accommodates: 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 13/16″ in connections. • Measures 1-3/8″ (W) x 7-3/4″ (H) x 1/8″ (D) (33mm x 185mm x 3.2mm) • Accepts up to 2 padlocks or lockout hasps for multiple worker lockout, accepts any padlock with a shackle diameter up to 9/32″
